chemistry_1st 2022

gGWj ˆUÕ¡ 1 gGWj 1 jÅveGiUwii wbivc` eÅenvi mgq: 25 wgwbU m†Rbkxj eüwbeÆvPwb cÉk² gvb-25 1. cixÞvMvGi ˆKjvwmZ c`v^ÆGK ÷Ó• KiGZ wbGÁ²i ˆKvbwU eÅen†Z nq? K Še`yÅwZK wnUvi L eybGmb evbÆvi M wdDg üW N ˆWwmGKUi 2. 250 mL 0.1 M NaCO3 `ËeGY Na2CO3 AvGQ K 3.25 g L 2.65 g M 1.06 g N 2.12 g 3. wbGPi ˆKvbwU cÉvBgvwi Õ¡Åv´£vWÆ c`v^Æ? K KMnO4 L H2SO4 M Na2S2O4 N K2Cr2O7 wbGPi DóxcKwU cGov ‰es 4 I 5 bs cÉGk²i Dîi `vI: gy®²v wWwRUvj eÅvGjG´Ö cvV ˆbqvi mgq mivmwi nvZ «¼viv cvò aGi IRb Kij ‰es KvGPi Pjgvb ™Ïvm AvUKvGjv dGj Kvw›ÞZ IRGbi ˆPGq ˆewk IRb jÞ Kij| A 4. IRb ˆewk nIqvi KviY ˆKvbwU? K ˆgwkGbi fzj L nvGZi Av`ËÆZv M fvix cvò N 2-wWwRU eÅvGj´Ö 5. gy®²vi eÅvGj´Ö eÅenvGi i. KvGPi ˆ`qvj «¼viv e®¬ ivLv ii. evqy hviv AvGjvwoZ nGj fzj cvV ˆ`q iii. IRb ˆevZj cÉGqvRb nq wbGPi ˆKvbwU mwVK? A K i I ii L i I iii M ii I iii N i, ii I iii 6. cj-eywã eÅvGjG´Öi mvnvGhÅ meÆwbÁ² KZ cwigvY fi (g) cwigvY Kiv hvGe? K 0.0001 L 0.001 M 0.01 N 0.10 7. ˆKÌvwgK ‰wmGWi mvnvGhÅ KuvPcvò cwiÓ•vi Kivi mgq ˆKvb aiGbi wewKÌqv NGU? K weRviY L cÉwZÕ©vcb M RviY N cÉkgb 8. C2H2O4.2H2O i. cÉvBgvwi Õ¡Åv´£vWÆ c`v^Æ ii. ‰i Rjxq `ËeY AÁÏxq iii. ‰i Rjxq `ËeY Þvixq wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 9. wbGPi ˆKvbwU mycvi AÝvBW? K KO2 L Pb3O4 M MnO2 N Na2O2 10. eyÅGiGUi mvnvGhÅ meÆwbÁ² KZ AvqZb cwigvc Kiv hvq? K 0.1cm3 L 0.5cm3 M 1cm3 N 1.5cm3 11. KvGPi h¯¨cvwZ cwiÓ•vGii RbÅ ˆKvbwU eÅenvi Kiv nq? K KwÕ¡K ˆmvWv L mvevb M cvwZZ cvwb N ˆKÌvwgK ‰wmW 12. weKviK ˆebwRGbi cwieGZÆ ˆKvbwU eÅenvi Kiv hvq? K UjyBb L ˆebRwqK ‰wmW M ˆdbj N B^vbj 13. ˆKvbwU welvÚ c`v^Æ? K bvBGUÇvUjyBb L ˆebwRb M CuSO4 N H2SO4 14. digvwjb kixGi cÉGek KiGj i. wKWbx bÓ¡ nGZ cvGi ii. KÅv´Övi nIqvi mÁ¿vebv ^vGK iii. ˆPvL e®¬ nGq ˆhGZ cvGi wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 15. ivmvqwbK c`v^ÆGK ÷Kbv ivLGZ eÅen†Z nq K ˆWwmGKUi L eybGmb evbÆvi M wdDg üW N pH wgUvi 16. UvBGUÇkGbi ˆÞGò ZiGji AvqZb wbLuyZfvGe gvcvi RbÅ ˆKvb ˆRvov h¯¨cvwZ eÅen†Z nq? K eyÅGiU I KwbGKj dÑvÕ• L wcGcU I KwbGKj dÑvÕ• M eyÅGiU I wcGcU N eyÅGiU I gvcGPvO 17. wbGPi ˆKvbwU jÅveGiUwiGZ Kiv hvGe bv? i. LvIqv ii. cvb Kiv iii. k¼vm ˆbqv wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 18. ˆmwggvBGKÌv AÅvbvwjwUKÅvj c«¬wZGZ eÅen†Z c`vG^Æi cwigvY K 0.5g 1.0 g L 0.5g 0.1 g M 0.005g 0.01g N 1g 10g 19. cwiGek ev®¬e c«¬wZ nGjv? i. gÅvGKÌv c«¬wZ ii. gvBGKÌv c«¬wZ iii. ˆmwg gvBGKÌv c«¬wZ wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 20. wbGPi ˆKvbwU jÅveGiUwiGZ h¯¨cvwZ cwiÓ•viKiGY eÅen†Z nq? K HCl + K2Cr2O7 L H2SO4 + K2Cr2O7 M H2CO3 + K2Cr2O7 N HNO3 + K2Cr2O7 21. eyÅGiU cwiÓ•vi KiGZ wbGPi ˆKvbwU eÅen†Z nq? K mvevb L wWUviGR´Ÿ M ˆKÌvwgK ‰wmW N wfGbMvi 22. Na2CO3 i. cÉvBgvwi Õ¡Åv´£vWÆ c`v^Æ ii. ‰i Rjxq `ËeY AÁÏxq iii. ‰i Rjxq `ËeY Þvixq wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 23. MSDS Kx? K Material Safety Data Scale L Material Service Data Sheet M Material Safety Data Sheet N Manual Safety Data Sheet wbGPi DóxcKwU cGov ‰es 24 I 25 bs cÉGk²i Dîi `vI: ‰wmW Þvi UvBGUÇkGbi mgq AwgZ KwbKÅvj dÑvGÕ• X ˆhŒM ‰es eyÅGiGU ˆmGK´£vwi Õ¡Åv´£vWÆ c`v^Æ HCl eÅenvi Kij ‰es meÆGkGl wg^vBj AGié hyÚ Kij| 24. AwgZ KwbKÅvj dÑvGÕ• ˆKvbwU wbGe? K NaCl L Na2CO3 M H2CO3 N H2O 25. AwgGZi ˆkGl ˆhvMK‡Z c`v^Æ i. ‰KwU wbG`ÆkK ii. 1-2 ˆduvUv ˆhvM Kiv nq iii. ZzjÅZv we±`y wbG`Æk KGi wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii Dîi 1 N 2 L 3 N 4 L 5 N 6 K 7 M 8 K 9 L 10 K 11 N 12 K 13 L 14 N 15 K 16 M 17 K 18 L 19 M 20 L 21 M 22 L 23 M 24 L 25 N gGWj ˆUÕ¡: wbGRGK hvPvB Kwi

2 cvGéix m†Rbkxj imvqb cÉ^g cò ‰Kv`k-«¼v`k ˆkÉwY mgq: 2 N¥Ÿv 35 wgwbU m†Rbkxj iPbvgƒjK cÉk² gvb-50 1. imvqb MGelYvMvi ‰es wewf®² ivmvqwbK wewKÌqvq wbÁ²wjwLZ avcmgƒn AbymiY Kiv nq: MGelYvMvGi ivmvqwbK `ËGeÅi mwVK msiÞY ivmvqwbK wewKÌqvq ivmvqwbK `ËGeÅi cwiwgZ eÅenvi AeÅen†Z ivmvqwbK `ËGeÅi I ivmvqwbK eGRÆÅi wbivc` cwiZÅvM K. cÉgvY `ËeY Kx? 1 L. ivBWvi eÅenvi ˆKb cÉGqvRb? eÅvLÅv KGiv| 2 M. DóxcGKi cÉ^g avcwU KxfvGe mÁ·®² Kiv nq weÕ¦vwiZ ˆjGLv|3 N. DóxcGKi Z‡Zxq avcwUi ài‚Z½ weGkÏlY KGiv| 4 2. c«¬wZ eÕ§i IRb eÕ§i AvqZb A 425 102 g 2mL B 425 103 g 0.2mL K. RviY wkLv Kx? 1 L. jÅveGiUwiGZ cvwZZ cvwbGZ eÅenvi eÅvLÅv KGiv| 2 M. ‰KwU ‰bvjM eÅvGj´Ö eÅenvi KGi 'B' c«¬wZGZ DwÍÏwLZ eÕ§i IRb KxfvGe gvcGe? 3 N. ˆZvgvi KGjR jÅveGiUwiGZ eÅenvGii RbÅ ˆKvb c«¬wZ AwaKZi DcGhvMx KviY weGkÏlY KGiv| 4 3. jÅveGiUwiGZ ™Ïvm wbwgÆZ h¯¨cvwZi gGaÅ me ˆPGq ˆewk eÅen†Z nq eyÅGiU, wcGcU, ˆKŒwYK dÑvÕ•, ciL bj, exKvi BZÅvw`| K. ivBWvi aË‚eK Kx? 1 L. gvBGKÌv I ˆmwg gvBGKÌv AÅvbvwjwUKÅvj c«¬wZi gGaÅ cv^ÆKÅ Kx? 2 M. DóxcGK h¯¨cvwZàGjvi cwiÓ•viKiY ˆKŒkj eYÆbv KGiv| 3 N. DóxcGKi h¯¨cvwZàGjvi eÅenvi ˆÞò ‰es eÅenvi ˆKŒkj wjGLv| 4 4. Set-A Set-B 250mL 1mL 5mL K. Iqvwks wgkÉY Kx? 1 L. welvÚ eRÆÅ msiÞGYi DcvqàGjv Kx Kx? 2 M. Set-A ‰i DcKiY mvgMÉxGZ Mvp NaOH ‰es KMnO4 `ËeY eÅenvGii cÉfve eÅvLÅv KGiv| 3 N. weGkÏlYx imvqGb `ywU Set ‰i DcKiGYi eÅenvi ˆÞò ‰K nGe Kx? ˆZvgvi gZvgZ weGkÏlY KGiv| 4 5. imvqb cixÞvMvGi wewf®² weKviK `ËGeÅi gGaÅ HNO3, H2SO4 HCHO BZÅvw` LyeB ài‚Z½cƒYÆ| ‰àGjv Lye mveavGb msiÞY Kiv DwPr| K. 4-wWwRU eÅvGj´Ö Kx? 1 L. AvGivnx aË‚eK «¼viv Kx ˆevSv hvq? 2 M. DóxcGKi ivmvqwbK `ËeÅmgƒGni msiÞY c«¬wZ eYÆbv KGiv|3 N. DóxcGKi DwÍÏwLZ ivmvqwbK `ËeÅmgƒn cwiGeGki RbÅ ügwKÕ¼i…c ˆKb? weGkÏlY KGiv| 4 6. jÅveGiUwiGZ Avgiv cÉvqkB Mvp H2SO4, KCN, NH4OH, K2Cr2O7, KMnO4, HNO3, ˆebwRb I H2S cÉf‡wZ c`v^Æ wbGq KvR KGi ^vwK| ‰me ˆhŒM gvbe Õ¼vÕ©Å I cwiGeGki RbÅ AZů¦ msGe`bkxj| ZvB ‰me ˆhŒGMi mwVK msiÞY I cwiwgZ eÅenvi mÁ·GKÆ AvgvG`i aviYv ^vKv DwPr| K. MSDS ‰i cƒYÆi…c ˆjGLv| 1 L. jÅveGiUwiGZ AvBKÅvGci eÅenvi Kxi…c? 2 M. DóxcGKi ˆhŒMàGjv wbGq cixÞvMvGi KvR Kivi mgq Kx Kx mZKÆZv AejÁ¼b Kiv `iKvi? 3 N. DwÍÏwLZ ˆhŒMàGjvi AcwiwgZ eÅenvi gvbe Õ¼vÕ©Å I cwiGek ‰i RbÅ ügwKÕ¼i…c weGkÏlYgƒjK Dîi `vI| 4 7. X bvgK KGjGRi imvqb cixÞvMvi nGZ eRÆÅ cvwb cvGki cyKzGi wMGq cGo| wKQyw`b ci ˆ`Lv ˆMj H cyKzGii gvQ gGi hvGœQ ‰es cvk¼ÆeZÆx MvGQi cvZv njy` eYÆ aviY KiGQ| ‰ cwiGek wechÆq ˆivGa imvqGbi wkwÞKv LvGj`v AvÚvi ‰K`j wkÞv^ÆxGK wbGq cyKzi nGZ 10 mL KGi 3wU bgybv cvwb msMÉn KiGjb| K. Õ¡cKKÆ Kx? 1 L. jÅveGiUwiGZ ˆcvGmÆwjb evwUi eÅenvi Kxi…c? 2 M. DóxcGK DwÍÏwLZ bgybv msMÉGn ˆKvb KvP h¯¨ eÅenvi Dîg ‰es ˆKb? 3 N. DóxcGK DwÍÏwLZ cwiGek wechÆq ˆivGa imvqGbi wkÞv^Æx wnGmGe Kx Kx c`GÞc ˆbqv DwPZ? weGkÏlY KGiv| 4 8. ivmvqwbK jÅveGiUwi ˆ^GK D«¿„Z ‘eÅen†Z ivmvqwbK `ËGeÅi wbivc` msiÞY I AcmviGYi’ Ici imvqb mwgwZi DG`ÅvGM AbywÓ¤Z ˆmwgbvGi wZbwU cÉwKÌqvi Ici ài‚Z½ AvGivc Kiv nq” i. SuywKi gvòv Abyhvqx eÅen†Z ivmvqwbK `ËGeÅi ˆkÉwYKiY I msiÞY| ii. eÅen†Z ivmvqwbGKi wbivc` cwiZÅvMKiY| K. cvwbMvn Kx? 1 L. LwbR ‰wmWmgƒnGK jÅveGiUwiGZ KxfvGe msiÞY Kiv nq? 2 M. DóxcGKi (i) cÉwKÌqvwU KxfvGe mÁ·®² Kiv nq? 3 N. DóxcGKi (ii) cÉwKÌqvwUi ài‚Z½ weGkÏlY KGiv| 4

gGWj ˆUÕ¡ 3 gGWj 2 àYMZ imvqb mgq: 25 wgwbU m†Rbkxj eüwbeÆvPwb cÉk² gvb-25 1. ‰KwU ˆgŒGji K, L ‰es M ˆmj cƒYÆ ^vKGj ˆgŒjwUi cvigvYweK msLÅv KZ? K 10 L 12 M 18 N 20 2. nvBGWÈvGRb cigvYyi wewKiY eYÆvjx cÉKvkK mvaviY mgxKiY nGjv 1 = 1.097 107 ( ) 1 n1 2 1 n2 2 m1 evgvi wmwiGR n1 ‰i gvb KZ? K 1 L 2 M 3 N 4 3. cvigvYweK MVb KvVvGgv AbymvGi, ‰KwU cigvYyi ˆKvb ‰KwU AiweGUi BGjKUÇb aviY ÞgZv mGeÆvœP K wecixZ wÕ·bhyÚ `y’wU L 32wU M 2n2 (‰LvGb n = cÉavb ˆKvqv´Ÿvg msLÅv) N `y’wU 4. AwÝGRGb 8wU BGjKUÇb AvGQ| wbGPi ˆKvb Z^Å/Z^Åmgƒn AwÝGRGbi BGjKUÇb kwÚÕ¦Gi RbÅ mZÅ? i. 1s2 kwÚÕ¦Gi cÉ^g BGjKUÇGbi RbÅ PviwU ˆKvqv´Ÿvg msLÅvi gvb àGjv (1, 0, 0, + 1/2) A^ev, (1, 0, 0, 1/2) ii. AwÝGRGb ˆcÉvUGbi msLÅv 8 wbw`ÆÓ¡ nGjI wbDUGbi msLÅv 8 wbw`ÆÓ¡ bq iii. PZz^Æ ˆKvqv´Ÿvg msLÅv s, ˆPŒÁ¼K ˆÞGò BGjKUÇGbi ˆPŒÁ¼K övgK wbG`Æk KGi ˆKvbwU mwVK? K i L i I ii M i I iii N i, ii I iii 5. ‰KwU wbiGcÞ ˆgŒj Y ‰i BGjKUÇb webÅvm nj 1s2 2s2 2p6 3s1 | Bnv ˆhvRÅZv kwÚÕ¦Gi BGjKUÇb MÉnY ev eRÆb KGi KZ PvGRÆi Avqb ŠZwi KGi| K 2 L 1 M + 1 N + 2 6. ˆKÌvgvGUvMÉvwdGZ ‰KwU Dcv`vb wÕ©i `kvi Dci w`Gq KZ`ƒi evwnZ nGe Zv wbfÆi KGi i. Pjgvb `kv I Dcv`vGbi AvKlÆGYi Dci ii. wÕ©i `kvi cyi‚GZ½i Dci iii. Zvcgvòvi Dci ˆKvbwU mwVK? K i L i I iii M ii I iii N i, ii I iii 7. ˆKÑvwib MÅvGmi eYÆ K cxZvf meyR L mv`v M ev`vgx N eYÆnxb 8. ˆbmjvi `ËeY I NH3 mnGhvGM ev`vgx AatGÞGci msGKZ nGjv K NH4Cl.HgI2 L HgI2 M Cu2[Fe(CN)6] N NH2[Hg2I3] 9. ˆevi cvigvYweK gGWGji cÉavb Õ¼xKvhÆmgƒn nGjv i. kwÚÕ¦i mÁ·wKÆZ cÉÕ¦ve ii. ˆKŒwYK fiGeM mÁ·wKÆZ cÉÕ¦ve iii. kwÚi wewKiY mÁ·wKÆZ cÉÕ¦ve cÉavb ˆKvqv´Ÿvg msLÅv ˆevi cvigvYweK gGWGji ˆh Õ¼xKvhÆ/Õ¼xKvhÆmgƒGni mvG^ mivmwi mÁ·wKÆZ Zv nGjv wbGPi ˆKvbwU mwVK? K i L ii M i I ii N ii I iii 10. MRI cÉhywÚ eÅenvi KGi Kiv hvq? K ˆivM wbYÆq L Rvj UvKv mbvÚ M Rvj cvmGcvUÆ N ˆivM Dckg ‰KwU Drm nGZ wbMÆZ iwkÄi Ziã Š`NÆÅ 412nm, ‰B ZGî½i wfwîGZ 11 I 12 bs cÉGk²i Dîi `vI: 11. iwkÄwU nGœQ K Mvgv iwkÄ L iéb iwkÄ M ˆeàwb iwkÄ N AeGjvwnZ iwkÄ 12. AvGjvi MwZ nGjv 3 108 ms–1 DóxcGK eÅen†Z iwkÄwUi KÁ·vâ KZ? K 7.28 1014Hz L 7.217 1010Hz M 7.281020Hz N 7.317 107 Hz 13. He-‰i `ywU BGjKUÇGbi wÕ·b ˆKvqv´Ÿvg msLÅvi gvb h^vKÌGg + 1 2 , – 1 2 | ‰wU ˆKvb bxwZ AbymiY KGi? K ˆevGii cigvYy bxwZ L AvDdevD bxwZ M üG´£i bxwZ N cvDwji eRÆb bxwZ 14. wkLv cixÞvq wbGPi ˆKvb Avqb Dä¾j ˆmvbvwj njy` eGYÆi wkLv ŠZwi KGi? K Na+ L K+ M Ca2+ N Al3+ 15. wbGPi ˆKvbwU AiweUvGji kwÚi DœPKÌg wbG`Æk KiGQ? K 1s < 2s < 6s < 5p L 4s < 3d < 4p < 5s M 4f < 6d < 5p < 7s N 4p < 4d < 5s < 6s 16. `†kÅgvb AvGjvi Ziã‹`GNÆÅi ˆié KZ? K 380 nm 780 nm L 780 nm 920 nm M 480 nm 780 nm N 780 nm 1500 nm 17. mPj `kvi ˆfŒZ AeÕ©vi Dci wfwî KGi ˆKÌvgvGUvMÉvwdi ˆKvb wefvRbwU Kiv nGqGQ? K AwaGkvlY ˆKÌvgvGUvMÉvwd I e¥Ÿb ˆKÌvgvGUvMÉvwd L Kjvg ˆKÌvgvGUvMÉvwd I cvZjv Õ¦i ˆKÌvgvGUvMÉvwd M ˆccvi ˆKÌvgvGUvMÉvwd I MÅvm ˆKÌvgvGUvMÉvwd N MÅvm ˆKÌvgvGUvMÉvwd I Zij ˆKÌvgvGUvMÉvwd 18. mnKvix ˆKvqv´Ÿvg msLÅv 2-‰i RbÅ ˆPŒÁ¼Kxq ˆKvqv´Ÿvg msLÅv KqwU? K 2wU L 3wU M 4wU N 5wU 19. KLb AatGÞc cGi? K AvqwbK àYdj < `ËveÅZv àYdj L AvqwbK àYdj > `ËveÅZv àYdj M AvqwbK àYdj `ËveÅZv àYdj N AvqwbK àYdj = `ËveÅZv àYdj 20. Si ‰i ˆÞGò òGqv`k BGjKUÇGbi RbÅ MÉnYGhvMÅ ˆKvqv´Ÿvg msLÅvi ˆmU i. n = 3, l = 1, m + 1, s = + 1 2 ii. n = 3, l = 1, m = 0, s = 1 2 iii. n = 3, l = 0, m = 0, s = 1 2 wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 21. ˆKvbwUGZ AvGM BGjKUÇb cÉGek KiGe K 3d ˆZ L 4p ˆZ M ˆKvGbvwUB bv N 5d 22. ˆdwiK jeGYi `ËeGY AÅvGgvwbqv `ËeY ˆhvM KiGj Kx eGYÆi AatGÞc Drc®² nq? K mv`v L meyR M njy` N ev`vwg 23. Kjvg ˆKÌvgvGUvMÉvwd c«¬wZ gƒjZ eÅenvi Kiv nq i. ejGcGbi Kvwj ŠZwiGZ ii. `ËveK ŠZwiGZ iii. AwZ ռ͸ cwigvY wgkÉGYi Dcv`vb c†^KxKiGY wbGPi ˆKvbwU mwVK? K i L ii M iii N i, ii I iii wbGPi ZG^Åi AvGjvGK 24 I 25 bs cÉGk²i Dîi `vI : kvwnb ‰KwU ARvbv jeGYi Rjxq `ËeGY Avjv`fvGe cUvwmqvg ˆdGivmvqvbvBW I ˆewiqvg bvBGUÇU Pvjbv KGi chÆGeÞY KiGjv| 24. ARvbv jeYwUGZ Fe3+ Avqb ^vKGj i. Mvp bxj `ËeY ŠZwi KGi ii. Mvp bxj AatGÞc ŠZwi KGi iii. KCNS ‰i mvG^ iÚ jvj `ËeY ŠZwi KGi wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 25. jeYwU KveÆGbU gƒjK hyÚ nGj kvwnb ˆKvb eGYÆi AatGÞc chÆGeÞY KGiwQj? K nvjKv meyR L bxjvf mv`v M mv`v N ev`vgx Dîi 1 M 2 L 3 M 4 N 5 M 6 L 7 K 8 N 9 K 10 K 11 M 12 K 13 N 14 K 15 L 16 K 17 K 18 N 19 L 20 K 21 K 22 N 23 M 24 M 25 M

4 cvGéix m†Rbkxj imvqb cÉ^g cò ‰Kv`k-«¼v`k ˆkÉwY mgq: 2 N¥Ÿv 35 wgwbU m†Rbkxj iPbvgƒjK cÉk² gvb-50 1. Fe(OH)3 Rjxq `ËeY 25C Zvcgvòv Zvcgvòv Ksp = 2.1 × 1032 mol4 L4 (Fe = 55.85) K. cwji eRÆb bxwZwU ˆjGLv? 1 L. Fe ˆK ˆdGivPzÁ¼K c`v^Æ ejv nq ˆKb? 2 M. DóxcGKi mÁ·†Ú `ËeGY OH– ‰i Nbgvòv wbYÆq KGiv| 3 N. DóxcGKi ˆhŒMwUi `ËveÅZv 15C Zvcgvòvq 2.96 10–9 molL–1 nGj, 15C Zvcgvòvq cÉ`î `ËeYwUGZ AatGÞc coGe wKbv Zv MvwYwZKfvGe weGkÏlY KGiv| 4 2. A 1s2 2s2 2p6 3s2 3p6 3d6 K. AvBGmvGUvb Kx? 1 L. üG´£i bxwZ BGjKUÇb webÅvmmn eÅvLÅv KGiv| 2 M. DóxcK nGZ 3d ‰i BGjKUÇbmgƒGni meàGjv ˆKvqv´Ÿvg msLÅvi gvb wbYÆq KGiv| 3 N. DóxcGKi 'A' ‰i BGjKUÇb webÅvmwU ‰KwU cigvYyi A^ev AvqGbi DwÚwU hywÚmn eÅvLÅv KGiv| 4 3. B ‰KwU ˆgŒj hvi ˆhvRÅZvÕ¦Gii BGjKUÇGbi ˆKvqv´Ÿvg msLÅvàGjv wbÁ²i…c: n = 4, l = 0, m = 0, s = 1 2 K. UV iwkÄ Kx? 1 L. ˆPŒÁ¼Kxq ˆKvqv´Ÿvg msLÅvi ZvrchÆ ˆjL| 2 M. DóxcGK B = H nGj BGjKUÇbwUi 4^Æ Õ¦i ˆ^GK 1g kwÚ Õ¦Gi wbGq AvmGj wecixZ iwkÄi Ziã‹`NÆÅ wbYÆq KGiv|3 N. DóxcGKi B2+ AvqGbi eYÆhyÚ nevi mÁ¿veÅZv hvPvB KGiv| 4 4. Þvi jeGYi gƒj `ËeY avc (1) : mv`v AatGÞc cGo, hv AwZwiÚ weKviGK `Ëexf„Z nq| avc (2): AatGÞc cybivq wdGi AvGm H2S mn D KiGj| K. mgAvqb cÉfve Kx? 1 L. AiweU I AiweUvj ejGZ Kx ˆevS? 2 M. avc (1) I avc (2) ‰i AvGjvGK wewKÌqvmn jeYwUi ÞviKxq gƒjK kbvÚ KGi ˆ`LvI| 3 N. cixÞvbGji gƒj `ËeGY DcwÕ©Z ÞviKxq ˆgŒjwUi ˆKÑvivBW jeGYi mvG^ ‰KB chÆvqfzÚ Þvi I g†rÞvi avZzi ˆKÑvivBW jeGYi cvwbGZ `ËveÅZvi KÌg eÅvLÅv KGiv| 4 5. nvBGWÈvGRb cigvYyi PZy^ÆZg KGÞi eÅvmvaÆ 8.5 1010 m| cigvYywUi w«¼Zxq I Z‡Zxq ˆevi KGÞ ‰KwU BGjKUÇGbi kwÚ h^vKÌGg 5.42 1012 erg ‰es 2.41 1012 erg| Avgiv Rvwb, BGjKUÇGbi fi, 9.1 103 kg ‰es h = 6.625 1027 erg sec| K. ˆKvqv´Ÿvg Zî½ Kx? 1 L. iv`viGdvGWÆi cigvYy gGWjGK ˆmŒi gGWj ejv nq ˆKb?2 M. PZy^Æ KÞcG^ BGjKUÇbwUi MwZGeM wbYÆq KGiv| 3 N. cigvYywU 3q KÞ ˆ^GK w«¼Zxq KGÞ ‰KwU BGjKUÇb ˆbGg Avmvi dGj ˆh kwÚi wewKiY nq Zvi Ziã Š`NÆÅ wnmve KGiv| 4 6. AiweUvj l m X 0 0 Y 1 +1, 0, 1 Z 2 +2, +1, 0, 1, 2 K. Avjdv KYv Kx? 1 L. wÕ©i KÞcG^ ^vKvKvGj BGjKUÇb wÕ©i AeÕ©vq ^vGK Kx? 2 M. DóxcGKi X I Y AiweUvj«¼Gqi mÁ¿veÅ wPò DcÕ©vcb KGiv| 3 N. “BGjKUÇb wbDwKÑqvGmi wewf®² kwÚÕ¦Gi AeÕ©vb KiGZ cvGi” DóxcGKi Z AiweUvGji mvGcGÞ DwÚwUi weGkÏlY KGiv| 4 7. K. ˆZRwÕ˜q iwkÄ Kx? 1 L. Na+ PvRÆhyÚ wK¯§ Na Zwor wbiGcÞ ˆKb? 2 M. 0.25M H2SO4 `ËeGY A-cvGòi bgybvwUi `ËveÅZv wbYÆq KGiv| 3 N. DóxcGKi B I C-cvGòi ˆhŒMàGjvi cvwbGZ `ËveÅZv wbqvgGKi Dci wbfÆi KGi-weGkÏlY Ki| 4 8. ˆgŒj cvigvYweK msLÅv X 29 Y 30 K. eYÆvjx KvGK eGj? 1 L. 2d AweÆUvjwU mÁ¿e bq ˆKb? 2 M. 'X' ‰i 23Zg BGjKUÇbwUi ˆÞGò PviwU ˆKvqv´Ÿvg msLÅvi mwVK ˆmUwU wbYÆq KGiv| 3 N. “'X' I 'Y' ‰i AvqbmgƒGni gGaÅ ‰KwUGK wkLv I wmÚ Dfq cixÞvi gvaÅGg mbvÚ Kiv ˆMGj I AciwUGK wmÚ cixÞvi gvaÅGg mbvÚ Kiv hvq, wK¯§ wkLv cixÞvi gvaÅGg mbvÚ Kiv hvq bv|” eÚeÅwU eÅvLÅv KGiv| 4

gGWj ˆUÕ¡ 5 gGWj 3 ˆgŒGji chÆvqe†î agÆ I ivmvqwbK e®¬b mgq: 25 wgwbU m†Rbkxj eüwbeÆvPwb cÉk² gvb-25 1. wbGPi ˆKvb MÉ‚Gci ˆgŒjmgƒn AeÕ©v¯¦i ˆgŒj? K Sc,. Fe, Cu, Cr L Fe, Co, Ni, Zn M Cr, Mn, Fe, Cu N Sc, Cr, Fe, Zn 2. ‰KwU AvqwbK ˆhŒGMi AwaKZi mgGhvRx nIqvi mÁ¿vebv@ i. KÅvUvqGbi AvKvi ˆQvU I AÅvbvqGbi AvKvi eo nGj ii. KÅvUvqGbi AvKvi ˆQvU I DœP PvRÆ ^vKGj iii. AÅvbvqGbi AvKvi ˆQvU I DœP PvRÆ ^vKGj wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 3. d-eÐK ˆgŒj RwUj ˆhŒM MVb KiGZ cvGi KviY i. cigvYy I AvqGbi Þz`Ë AvKvi ii. wbDwKÑqvGm PvGRÆi cwigvY ˆewk iii. d-DcÕ¦Gii BGjKUÇbàGjvi AmgGhvRÅZv MVGbi ÞgZv wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 4. mgxKiGYi gvaÅGg PviwU ‰b^vjwci cwieZÆb ˆ`LvGbv nGjv Na(g) Na+ (g) + e, H = W; Na(g) Na2+(g) + 2e, H = X; Na(s) Na(g), H = Y; Na(s) Na+2 (g) + 2e H = Z| ˆmvwWqvg ˆgŒGji cigvYyi 2q AvqwbKiY wefGei gvb K X L X W M Y W N Z W 5. AvqwbK e®¬b MVGbi RbÅ cÉGqvRbxq kZÆ i. avZzi wbÁ² AvqbxKiY kwÚ ii. ˆhŒGMi DœP jÅvwUm kwÚ iii. AavZzi DœP BGjKUÇb AvmwÚ wbGPi ˆKvbwU mwVK? A K i I ii L i I iii M ii I iii N i, ii I iii wbGPi DóxcKwU jÞ Ki ‰es 6 I 7 bs cÉGk²i Dîi `vI : MÉ‚c 2 13 14 15 17 ˆgŒj Be, Mg B, Al C, Si N, P F, Cl AÝvBW BeO, MgO B2O3, Al2O3 OF2, Cl2O 6. MgO I Al2O3 ‰i ˆÞGò i. DfqB ‰wmGWi mvG^ wewKÌqv KGi ii. DfqB ÞvGii mvG^ wewKÌqv KGi iii. w«¼Zxq ˆhŒMwU ÞvGii mvG^ wewKÌqv KGi wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 7. ˆKvb MÉ‚Gci ˆgŒj cÉkg AÝvBW Drc®² KiGZ cvGi K 2 I 13 L 13 I 14 M 14 I 15 N 15 I 17 8. AvqwbK eÅvmvGaÆi wbÁ² KÌgvbymvGi mwVK KÌgwU wbeÆvPb KGiv| K Al3+ > Mg2+ > Na+ > F > O2 L O2 > F > Na+ > Mg2+ > Al3+ M Na+ > F > Mg2+ > O2 > Al3+ N Na+ > Mg2+ > Al3+ > O2 > F 9. wbGPi ˆKvbwU cviAÝvBW ˆhŒM? K KO2 L NO2 M MnO2 N BaO2 10. Li, Na, K -‰i weRviY ÞgZvi mwVK KÌg nGjv K Li > Na > K L Na > K > Li M K > Na > Li N Li > K > Na 11. mGeÆvœP AvqwbKiY wefewewkÓ¡ wbwÓ˜q MÅvm ˆgŒjwU nGjv K He L Ne M Ar N Kr 12. meGPGq ˆewk Zwor abvñK ˆgŒjwUi BGjKUÇb webÅvm nGjv K [He]2s1 L [He]2s2 M [Xe]6s1 N [Xe]6s2 13. w«¼Zxq chÆvGqi wbGPi ˆKvb ˆgŒjwUi AÝvBGWi AÁÏagÆ meGPGq ˆewk? K Be L B M N N F 14. wbGPi ˆKvb cwieZÆbwUi ˆÞGò kwÚ wbMÆZ nq? K X (g) X(g) + e L O(g) O+ (g) + e M O(g) + e O (g) N O (g) + e O2 (g) 15. -e®¬b MwVZ nq i. s–s AwaKÌgGYi gvaÅGg ii. p–p AwaKÌgGYi gvaÅGg iii. sp – sp AwaKÌgGYi gvaÅGg wbGPi ˆKvbwU mwVK? A K i I ii L i I iii M ii I iii N i, ii I iii 16.Mg ‰i cÉ^g AvqwbKiY wefGei gvb Na ‰i Zzjbvq eo, KviY K BGjKUÇbwU 2s DcKÞ ˆ^GK wbMÆZ nq L Mg ‰i KvhÆKix wbDwKÑq Avavb Na ‰i Zzjbvq ˆewk M BGjKUÇbwU cwicƒYÆ kwÚÕ¦i ˆ^GK wbMÆZ nq N AvqbwUi BGjKUÇb webÅvm wbwÓ˜q ˆgŒGji gZ nq 17. wbGPi ˆKvb ˆgŒjwU wbG`ÆwkZ cwievGii A¯¦fzÆÚ bq? K Cu-gy`ËvavZz L La-g†rÞvi avZz M I-nÅvGjvGRb N Ce-weij g†wîKv ˆgŒj wbGPi DóxcKwU co ‰es 18 I 19 bs cÉGk²i Dîi `vI: ‰KRb wkÞK sp2 msKiY eySvGZ wMGq fzjekZ AbÅ ‰KwU ŠRe ˆhŒM 'B' ‰i D`vniY w`Gjb| cGi wZwb ˆ`LGjb ˆhŒGMi cÉwZwU KveÆGb 2wU KGi AmsKwiZ AiweUvj AvGQ ‰es ‰i AvYweK fi 26| 18. DóxcGKi 'B' ˆhŒMwUGZ ˆKvb msKiY we`Ågvb? A K sp L sp2 M sp3 N sp2 d 19. DóxcGK 'B' ˆhŒMwUGZ i. 3wU -e®¬b AvGQ ii. 2wU -e®¬b AvGQ iii. AmsKwiZ AiweUvj«¼q cvkvcvwk AwaKÌgY KGi wbGPi ˆKvbwU mwVK? A K i I ii L i I iii M ii I iii N i, ii I iii 20. ˆKvb agÆ Abyhvqx nÅvGjvGRbàGjvGK mwVK KÌg AbymvGi mvRvGbv nq bvB? K F > Cl > Br : Zwor FYvñKZv L Cl > F > Br : BGjKUÇb AvmwÚ M F > Cl > Br : RviY ÞgZv N F2 > Cl2 > Br2 : e®¬b kwÚ 21. ‰KwU ˆgŒGji BGjKUÇb webÅvm [Ar]3d10 4s1 ˆgŒjwUi chÆvq mviwYGZ AeÕ©vb K 3q chÆvq 12 Zg MÉ‚c L 3q chÆvq 11 Zg MÉ‚c M 4^Æ chÆvq 12 Zg MÉ‚c N 4^Æ chÆvq 11 Zg MÉ‚c 22.wbGPi ˆKvb ˆRvowUGZ w«¼Zxq cigvYywU cÉ^g cigvYyi ˆPGq AvKvGi eo K Na, Mg L Br, Cl M Sr, Ca N O, S 23. [Ni(CO)4] ˆhŒMwU @ i. WvqvGPŒÁ¼K ii. PviwU mw®²Gek e®¬bhyÚ ˆhŒM iii. ˆhŒMwUi AvK‡wZ PZzÕ¦jKxq wbGPi ˆKvbwU mwVK? A K i I ii L i I iii M ii I iii N i, ii I iii 24. wbGPi ˆgŒjàGjvi gGaÅ Zwor FYvñKZvi nvi e†w«¬ cvIqvi KÌg K C, N, Si, P L P, Si, N, C M N, Si, C, P N Si, P, C, N 25. wbGPi ˆKvbwU AvqwbK eÅvmvGaÆi mwVK KÌg wbG`Æk KGi? K S2 > Cd2+ > K+ > Cl L Cl > S2 > K+ > Ca2+ M S2 > Cl > K+ > Ca2+ N Ca2+ > K+ > Cl > S2 Dîi 1 M 2 K 3 M 4 L 5 N 6 L 7 M 8 L 9 N 10 N 11 K 12 M 13 N 14 M 15 N 16 L 17 L 18 K 19 N 20 N 21 N 22 N 23 N 24 N 25 M

6 cvGéix m†Rbkxj imvqb cÉ^g cò ‰Kv`k-«¼v`k ˆkÉwY mgq: 2 N¥Ÿv 35 wgwbU m†Rbkxj iPbvgƒjK cÉk² gvb-50 1. Avqb BGjKUÇb msLÅv X+ 0 Y3– 10 Z2+ 26 K. nÅvGjvGRb Kx? 1 L. [Cu(NH3)4] 2+ KxfvGe MwVZ nq? 2 M. DóxcGKi YX3 ‰i mvG^ X+ hyÚ nGq MwVZ ˆhŒGMi msKiY eÅvLÅv KGiv| 3 N. DóxcGKi Z chÆvqf„Ú ˆgŒjmgƒGni MjbvsGKi cwieZÆb cÉGqvRbxq ˆjLwPò AsKb KGi weGkÏlY KGiv| 4 2. C2H2, NH3 ‰es H2O KZàGjv mgGhvRx ˆhŒM| K. WvqvgÅvMGbwUK ˆgŒj KvGK eGj? 1 L. bvBGUÇvGRGbi AvqwbKiY wefe AwÝGRb AGcÞv ˆewk ˆKb? 2 M. DóxcGKi 1g ˆhŒM KveÆGbi Kx aiGbi msKiY NGUGQ? AiweUvj wPGòi mvnvGhÅ eÅvLÅv KGiv| 3 N. AiweUvj msKixKiGYi aviYvi gvaÅGg DóxcGKi ˆkl 2wU ˆhŒGMi AYyi AvK‡wZ eÅvLÅv KGiv| 4 3. wbGPi MÉvdwU chÆGeÞY KGiv 5 cvigvYweK msLÅv AvqwbKiY wefe 10 15 20 A C B D E G H F P R Q S K. AiweUvGji AwaKÌgY Kx? 1 L. KveÆb cigvYyi sp2 msKivqb I Bw^b AYyi MVb KvVvGgvi eÅvLÅv `vI| 2 M. A I P ˆgŒGji AÝvBGWi aGgÆi mvG^ C I R ˆgŒGji AÝvBGWi aGgÆi ZyjbvgƒjK AvGjvPbv Ki| 3 N. B I C ‰es E I F ˆgŒGji AvqwbKiY wefGei gvGbi ‰KBi…c mv`†kÅ nGjI KviY mÁ·ƒYÆ wf®²-eÅvLÅv Ki| 4 4. ˆgŒj ewntÕ© Õ¦Gii BGjKUÇb webÅvm A 3d6 4s2 B 3s2 3p5 C 3d10 4s1 D 3d10 4s2 K. C2H4 ˆZ KqwU e®¬b AvGQ? 1 L. HClO4 I HBrO4 ‰i gGaÅ ˆKvbwU AwaKZi AÁÏxq? eÅvLÅv KGiv| 2 M. AB2 I AB3 ‰i gGaÅ ˆKvbwUi Mjbvâ ˆewk? ˆZvgvi DîGii cGÞ hywÚ `vI| 3 N. 'C' ˆgŒGji ‰KwU AvqGbi ˆhŒM iwOb nGjI 'D' ˆgŒGji AvqGbi ˆhŒM iwOb nq bv weGkÏlY KGiv| 4 5. RwUj AvqbwU jÞ Ki: [X (NH3)4] 2+ ; X ˆgŒGji cvigvYweK msLÅv = 29 K. ˆcvjvi ˆhŒM Kx? 1 L. Al2O3 ˆK DfagÆx AÝvBW ejv nq ˆKb? 2 M. DóxcGKi RwUj AvqbwU Kx msKiGY MwVZ nq eÅvLÅv KGiv| 3 N. DóxcGKi X ˆgŒGji cvigvYweK msLÅv 30 nGj cƒGeÆi ˆhŒGMi mwnZ PzÁ¼K agÆ Zzjbv KGiv| 4 6. A = ................... ns2 B = ................... np2 C = ................... np4 [n = 2] K. ˆcvjvivqb Kx? 1 L. AeÕ©v¯¦i ˆgŒj iwOb ˆhŒM MVb KGi ˆKb? 2 M. DóxcGKi A ‰i nvBWÈvBW ˆhŒGMi ˆK±`Êxq cigvYyi msKiY eÅvLÅv KGiv| 3 N. DóxcGKi B ‰es C ˆgŒGji nvBWÈvBW ˆhŒGMi e®¬b ˆKvGYi wf®²Zv iGqGQ weGkÏlY KGiv| 4 7. X(8) ii Ca Al i iii N K. Þvixq AÝvBW Kx? 1 L. avZzi AÝvBW ÞviagÆx ˆKb? 2 M. (i), (ii) I (iii) bs AÝvBGWi cÉK‡wZ wewKÌqvi mvnvGhÅ wbYÆq KGi ˆ`LvI| 3 N. (i) I (iii) bs AÝvBGWi cÉK‡wZ wbaÆviGY AÁÏ ÞviK wbG`ÆkGKi f„wgKv weGkÏlY KGiv| 4 8. ‰Kv`k ˆkËwYi wkÞK QvòG`i wbg³wjwLZ ˆgŒjàGjvi BGjKUÇb webÅvm wjLGZ ejGjb@ (i) K (ii) Br (iii) Kr (iv) Cl BGjKUÇb webÅvGmi ˆcÉÞvcGU ˆ`Lv hvq ˆh, KwZcq ˆgŒj ciÕ·Gii mvG^ e®¬Gb Ave«¬ nq| K. fÅvb-Wvi-Iqvjm ej KvGK eGj? 1 L. DcwiDÚ (i) bs I (iii) bs ˆgŒGji gGaÅ AvqwbKiY kwÚ Zzjbv KGiv| 2 M. DcwiDÚ (ii) bs ˆgŒGji wmjfvi jeY cvwbGZ A`ËeYxq eÅvLÅv KGiv| 3 N. DcwiDÚ (i) bs ˆgŒGji mvG^ (ii) bs I (iv) bs ˆgŒj «¼viv MwVZ ˆhŒGMi gGaÅ ˆKvbwUi Mjbvâ I Õ¹zUbvâ ˆewk weGkÏlY KGiv| 4

gGWj ˆUÕ¡ 7 gGWj 4 ivmvqwbK cwieZÆb mgq: 25 wgwbU m†Rbkxj eüwbeÆvPwb cÉk² gvb-25 1. ZxeËZvi mwVK KÌg ˆKvbwU? K H2SO4 > HNO3 > HClO3 L HNO3 > HClO3 > H2SO4 M H2SO4 > HClO3 > HNO3 N HClO3 > H2SO4 > HNO3 A2(g) + B2(g) HoooI 2AB(l) H = +ve 2. wewKÌqvwUGZ PvGci cÉfve Kxi…c nGe? K Pvc evoGj Drcv`b evGo L Pvc KgGj Drcv`b evGo M PvGci cÉfve ˆbB N Pvc evoGj Kp evoGe 3. COOH | COOH + H2SO4 + KMnO4 K2SO4 + MnSO4 + CO2 + H2O DcGivÚ wewKÌqvq Mn2+ ‰KwU K abvñK cÉfveK L Õ¼-cÉfveK M FYvñK cÉfveK N AvweÓ¡ cÉfveK 4. Zvcgvòv evovGj mvgÅveÕ©vq i. mvgÅveÕ©v evGg Õ©vbv¯¦wiZ nq ii. mvgÅ aË‚eGKi gvb evoGe iii. mvgÅveÕ©v Wvb w`GK mGi hvGe wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 5. wbGÁ²i ˆKvb wewKÌqvi Dci PvGci cÉfve ˆbB K A(g) + B(g) HoooI 2AB(g) L 2C(g) + D2(g) HoooI 2CD(g) M M2N4(g) HoooI 2MN2(g) N P2(g) + 3Q2(g) HoooI 2PQ3(g) 6. 2NO2(g) HoooI N2O4(g) wewKÌqvi mvgÅaË‚eGKi ‰KK Kx? K mol L1 L mol1 L3 M L mol1 N L2 mol2 7. AÅvGgvwbqv I AÅvGgvwbqvg ˆKÑvivBW ˆ^GK ‰KwU evdvi `ËeY ŠZwi Kiv nGjv| ‰B evdviwUGZ A͸ cwigvY ‰wmW ˆhvM KiGj Kx NUGe? K ‰wmGWi H+ Avqb Cl hyÚ nGq HCl ŠZwi KGi L ‰wmGWi H+ Avqb AÅvGgvwbqvi mvG^ hyÚ nGq NH4 + ŠZwi KGi M NH4 + Avqb weGqvwRZ nGq AÅvGgvwbqv ŠZwi nq N ‰wmGWi H+ Avqb AÅvGgvwbqvg ˆKÑvivBW weGqvwRZ nGZ evav ˆ`q 8. ivmvqwbK mvgÅveÕ©vi RbÅ wbGPi Z^Å/Z^Åmgƒn mwVK? i. Zvcnvix wewKÌqvq Zvc cÉ`vb Kiv nGj mÁÃyL wewKÌqv msMwVZ nGe ii. 10C Zvc cÉ`vb Kiv nGj wewKÌqvi MwZ `yB ˆ^GK wZb àY e†w«¬ ˆcGZ cvGi iii. DrcvG`i Nbgvòv KgvGj mÁÃyL wewKÌqv msMwVZ nGe wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 9. ˆKvb ivmvqwbK wewKÌqv ‰KB mvG^ mÁÃyLw`GK I cøvrw`GK PjGZ ^vKGj ZvGK ejv nq K DfgyLx wewKÌqv L mvgÅwewKÌqv M wecixZgyLx wewKÌqv N wÕ©wZkxj wewKÌqv 10. Kp I Kc ‰i gGaÅ mÁ·KÆ Kx? K Kp = Kc (RT)n L Kc = Kp (RT)n M Kp Kc = (RT)n N Kp = Kc wbGPi ZG^Åi AvGjvGK 11 I 12 bs cÉGk²i Dîi `vI : CH4(g) + 2O2(g) HoooI CO2(g) + 2H2O(l) H = 890 kJ mol1 C H, O = O, C = O, H O e®¬b kwÚ h^vKÌGg 431.5, 798, 724 I X kJmol1 | 11. DcGii ZG^Åi AvGjvGK X ‰i gvb KZ kJmol1 ? K 485.5 L 463 M 428 N 412 12. wewKÌqvi Zvcgvòv evovGj i. Kp ‰i gvb nËvm cvGe ii. Kp ‰i gvb e†w«¬ cvGe iii. mvgÅveÕ©v evGg mGi hvGe wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 13. mgq wewKÌqK Drcv` wPGò Y AÞ Kx wbG`Æk KGi? K wewKÌqvi MwZGeM L ˆgvjvi Nbgvòv M Pvc N Zvcgvòv 14. mvaviYZ 10C Zvcgvòv e†w«¬ KiGj wewKÌqvi nvi w«¼àY ev wZbàY e†w«¬ cvq| KviY i. wewKÌqGKi MwZGeM e†w«¬ cvq ii. msNlÆ nvi e†w«¬ cvq iii. AwaK AYyi mwKÌqY kwÚi jvf wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 15. SO2 RviGY ˆKvbwU cÉfveK wel wnGmGe KvR KGi? K Pt L V2O5 M MnO2 N As2O3 16. AbyNUGKi ŠewkÓ¡Å ˆKvbwU? K cÉK‡ZcGÞ wewKÌqvq Ask MÉnY KGi bv L DrcvG`i mvgÅ Nbgvòvi cwieZÆb NUvq M meÆ`vB wewKÌqvi nvGii nËvm NUvq N meÆ`vB wewKÌqvi mwKÌqb kwÚi e†w«¬ NUvq 17. jÅv-kÅvGUwjqvi bxwZ Abyhvqx, ˆKvb DfgyLx wewKÌqvi mvgÅveÕ©vq m¯ÃyL wewKÌqvwU ZvGcvrcv`x nGj, Zvcgvòvi cÉfvGe i. Zvcgvòv e†w«¬ KiGj wecixZ wewKÌqvwU AvbyK„jÅ jvf KGi, dGj DrcvG`i cwigvY nËvm cvq ii. Zvcgvòv nËvm KiGj m¯ÃyL wewKÌqv AbyK„j nq ‰es DrcvG`i cwigvY evGo iii. Zvcgvòv wÕ©i ^vKGj wewKÌqGKi cwigvY nËvm cvq ‰es DrcvG`i cwigvY evGo wbGPi ˆKvbwU mwVK? K i I ii L i I iii M i, ii I iii N ii I iii DóxcKwU co ‰es 1820 bs cÉGk²i Dîi `vI: N2O4(g) F 2NO2(g) ‰LvGb MÅvm wgkÉGYi ˆgvU Pvc P cÉv^wgK AeÕ©vq N2O4 ‰i cwigvY a ˆgvj ‰es mvgÅveÕ©vq a mol ˆ^GK mol weGqvwRZ nGj 18. mvgÅveÕ©vq ˆgvU ˆgvj msLÅv KZ? K (a – )mol L (a – 2)mol M (a + )mol N (a + 2)mol 19. wewKÌqvwUGZ NO2 ‰i AvswkK Pvc KZ? K 2 a – .P L 2a 2 + .P M 2P a + N 2 – a .P 20. DóxcGKi wewKÌqvi ˆÞGò i. Kp = 42 (a – ) 2 V ii. Kp = 42 P a2 – 2 iii. N2O4 ‰i AvswkK Pvc PN2O4 = a – a + .P wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 21. `ËeGY mÁ·ƒYÆi…Gc weGqvwRZ nq i. HCl ii. CH3COOH iii. HNO3 wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 22. wbGPi ˆKvb `ËeGYi pH 7.0 AGcÞv ˆewk? K 0.01M Na2CO3 L 0.01M NH4Cl M 0.01M CH3COOH N 0.01M NaCl 23. HF + MOH H+ + F– + M+ + OH– ; wewKÌqvwUi cÉkgb Zvc e†w«¬ cvIqvi KviY i. cÉkgb ZvGci mvG^ F AvqGbi cvwb ˆhvRb ZvGci mgwÓ¡KiY ii. HA I MOH– ‰i mÁ·ƒYÆ weGqvRb iii. F AvqGbi DœP PvRÆ NbZ½ wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 24. 1 mol C2H5OH ‰i cƒYÆ `nGb KZ ˆgvj CO2 Drc®² nq? K 1 mol L 2 mol M 3 mol N 4 mol 25. ˆZGji nvBGWÈvwRGbkGb ˆKvbwU nq? K Pt L Mo M Ni N As Dîi 1 N 2 M 3 L 4 M 5 K 6 K 7 L 8 N 9 K 10 K 11 L 12 L 13 K 14 N 15 N 16 K 17 K 18 M 19 M 20 M 21 L 22 K 23 L 24 L 25 M

8 cvGéix m†Rbkxj imvqb cÉ^g cò ‰Kv`k-«¼v`k ˆkÉwY mgq: 2 N¥Ÿv 35 wgwbU m†Rbkxj iPbvgƒjK cÉk² gvb-50 1. A = MÉ‚c IVA ‰i cÉ^g ˆgŒj B = MÉ‚c VIA ‰i w«¼Zxq ˆgŒj H2 = 1109.17 kJ BO2 ‰i Hf = 297.39 kJ mol1 AO2 ‰i Hf = 394.55 kJ mol1 K. `ËeY Zvc Kx? 1 L. Kc ‰i gvb KLbI kƒbÅ nq bv ˆKb? eÅvLÅv KGiv| 2 M. DóxcGKi AB2 ‰i MVb Zvc eYÆbv KGiv| 3 N. DóxcGKi D«¼†Z Z^Åmgƒn ˆ^GK ˆnGmi Zvc mgwÓ¡KiY mƒòwU MvwYwZKfvGe cÉgvY KGiv| 4 2. ‰KRb gvbyGli iGÚi pH 7.4| ˆKvGbv KviGY gvbyl cvwb kƒbÅZvi (wWnvBGWÈkGbi) KeGj cGo iGÚi pH 0.4 ‰i gGaÅ DVvbvgv KiGj Zvi Rxeb msKUvc®² nGq ˆhGZ cvGi| ZvB iGÚi evdvi `ËeGYi ˆKvGbv eÅvwµ¦ NUGj iÚ wbGRB Zvi pH wÕ©i KiGZ cvGi eGjB AÁÏxq RvZxq ˆjey ev Kgjv Lvevi MÉnY KiGjI iGÚi pH wVKB ^vGK| K. evdvi `ËeY Kx? 1 L. Zvcgvòv KgvGj wewKÌqvi MwZ KGg, eÅvLÅv KGiv| 2 M. DóxcGK wW-nvBGWÈkGb AvKÌv¯¦ eÅwÚi iGÚi pH wÕ©i ^vKvi wKÌqvGKŒkj ivmvqwbK wewKÌqvi gvaÅGg ˆ`LvI| 3 N. DóxcGKi evdvi `ËeGY mvgvbÅ Þvi RvZxq c`v^Æ (0.001 M NaOH) ˆhvM KiGj iGÚi pH evdvi KxfvGe Zv cÉwZGiva KGi aË‚e ivLGe hywÚmn weGkÏlY KGiv| 4 3. K. ‰b^vjwc Kx? 1 L. ZxeË ‰wmW I ZxeË ÞvGii cÉkgb Zvc aË‚eK ˆKb? 2 M. DóxcGK DGÍÏwLZ (ii) bs cvGò POH ‰i cwieGZÆ ZxeË Þvi ˆhvM KiGj cÉkgb ZvGci gvGb wK aiGbi cwieZÆb NUGe? eÅvLÅv KGiv| 3 N. DóxcGK DGÍÏwLZ (i) I (ii) bs cvGò mvgvbÅ cwigvY ‰wmW I Þvi ˆhvM KiGj pH ‰i wK aiGbi cwieZÆb NUGe weGkÏlY KGiv| 4 4. EX=430kJ EA=270kJ EB=339 kJ K. ivmvqwbK mvgÅveÕ©v KvGK eGj? 1 L. Mn2+ ‰KwU AGUv cÉfveK eÅvLÅv KGiv| 2 M. ˆjLwPò nGZ wewKÌqvi mwKÌqY kwÚ I H wnGme KGi wewKÌqvwU ZvGcvrc`x bv Zvcnvix Zv eÅvLÅv KGiv| 3 N. DóxcGKi wewKÌqvi mwKÌqb kwÚ I MwZi Dci cÉfveGKi f„wgKv eÅvLÅv KGiv| 4 5. N2(g) + 3H2(g) HoooooooI 2NH3 (g) H2O(l) (3) NH4OH(aq) (1) (2) HCl(aq) NH4Cl(aq) K. Zvcnvix wewKÌqv KvGK eGj? 1 L. Zvc imvqGbi ˆnGmi mƒòwU wee†Z KGiv| 2 M. DcGii 1 bs wewKÌqvwU Zvcnvix bv Zvc Drcv`x? ‰ wewKÌqvi mvgÅaË‚eGKi Dci Zvc I PvGci cÉfve eÅvLÅv KGiv| 3 N. 2 I 3 bs wewKÌqvi Drcvw`Z eÕ§àGjvi pH gvb mÁ·GKÆ eÅvLÅvmn aviYv `vI| ‰B Drcv` `y’wUi mg®¼Gq ŠZwi `ËeGYi evdvi wKÌqv hywÚmn weGkÏlY KGiv| 4 6. 1 M H2SO4 B CH3COOH + C2H3COONa C 1 M HF D 1 M NaOH A K. cvwbi AvqwbK àYdj Kx? 1 L. Zvcgvòv e†w«¬GZ cvwbi AvqwbK àYdj Kw ‰i gvGbi e†w«¬ NGU wK¯§ cvwbi cÉK‡wZ wbiGcÞ ˆ^GK hvq eÅvLÅv KGiv| 2 M. A ‰es B-‰i cÉkgb ZvGci gvGbi mvG^ A ‰es D-‰i cÉkgb ZvGci gvGbi cv^ÆGKÅi KviY eÅvLÅv KGiv| 3 N. A ‰es B `ËeY Avjv`vfvGe mvgvbÅ cwigvY C `ËeGY ˆhvM KiGj C `ËeGYi pH ‰i cwieZÆb mÁ·GKÆ hywÚmn g¯¦eÅ KGiv| 4 7. 5 ˆgvj PCl5(g) wbGq wbw`ÆÓ¡ Zvcgvòvq I 2 atm PvGc mvgÅveÕ©vq 3.5 ˆgvj ˆKÑvwib MÅvm Drc®² nq| PCl5(g) HoooI PCl3(g) + Cl2(g) K. pH Kx? 1 L. NaOH I HF ‰i wewKÌqvq cÉkgb ZvGci gvb aË‚eK gvGbi ˆPGq ˆewk ˆKb? eÅvLÅv KGiv| 2 M. DóxcGKi mvgÅveÕ©vq mvgÅaË‚eK Kc ‰i gvb KZ? 3 N. DóxcGKi mvgÅveÕ©vi Dci Pvc I Nbgvòvi cwieZÆb «¼viv jv-kvGZwjGqi bxwZ chÆvGjvPbv KGiv| 4 8. K = AeEa/RT mgxKiGYi mvnvGhÅ weævbx AvGnwbqvm wewKÌqvi nvGii Dci mivmwi Zvcgvòvi cÉfve eÅvLÅv KGib| K. wewKÌqvi nvi aË‚eK Kx? 1 L. DfgyLx wewKÌqvi ˆÞGò gyÚkwÚi cwieZÆb kƒbÅ nq ˆKb? 2 M. mgxKiYwU mgvavb KGi ˆjLwPGòi mvnvGhÅ KxfvGe mwKÌqb kwÚ wbYÆq KiGe? 3 N. ZvGcvrcv`x I Zvcnvix wewKÌqvi ˆÞGò DÚ mgvavbK‡Z mgxKiY DGÍÏL KGiv ‰es cÉvµ¦ ˆiLv Hi…c nIqvi KviY eYÆbv KGiv| 4 g†`y ‰wmW HA ZxeË Þvi MOH ZxeË ‰wmW HX g†`y Þvi POH (i) (ii)

gGWj ˆUÕ¡ 9 gGWj 5 KgÆgyLx imvqb mgq: 25 wgwbU m†Rbkxj eüwbeÆvPwb cÉk² gvb-25 1. ˆKvb wfUvwgb cvwbGZ `ËeYxq? K wfUvwgb A L wfUvwgb D M wfUvwgb B KgGµÏÝ N wfUvwgb K 2. gÅvGKÌv LwbR ˆKvbwU? K Zn L Cu M Mg N Fe 3. DîvGc ˆKvb wfUvwgb bÓ¡ nGq hvq? K wfUvwgb-‰ L wfUvwgb-we M wfUvwgb-wm N wfUvwgb-wW 4. ˆKvgj cvbxq, mvjv` ˆWÈwms, ˆÕ•PAvc msiÞGY Kx aiGbi Lv`Å msiÞK eÅen†Z nq? K ‰w´ŸAwÝGW´Ÿ L ‰w´ŸgvBGKÌvweqvj M wKGjwUs ‰GR´Ÿ N AÅvw´ŸevGqvwUK&m 5. KjGqGWi `ËeGY jeY ˆhvM KiGj i. KYvàGjvi PvRÆ cÉkwgZ nq ii. KYvàGjv AviI `ƒGi mGi hvq iii. KYvàGjv ‰KwòZ nGZ ^vGK wbGPi ˆKvbwU mwVK? A K i I ii L i I iii M ii I iii N i, ii I iii 6. Bw^wjb WvB-AÅvwgb nGjv K AÅvw´Ÿ AwÝGW´Ÿ L wKGjwUs ‰GR´Ÿ M TBHQ N AÅvw´ŸeÅvKGUwiqv 7. mvBGUvµÏvRGgi pH ‰i gvb KZ? K 3 L 4 M 10 ‰i KvQvKvwQ N cÉvq 7 8. ˆKvbwU AYyRxGei Dci wei…c cÉfve m†wÓ¡ KGi? K jeY L gwiP M ˆjeyi im N àuo DóxcKwU wfGbMvi cÉÕ¦ywZi ‰KwU cÉwKÌqv| ‰wU ˆ^GK 9 I 10 bs cÉGk²i Dîi `vI: A + O2 e¨vK‡Uwiqv evqy CH3CHO + H2O CH3CHO + O2 e¨vK‡Uwiqv evqy CH3COOH B + H2O 9. DóxcGKi wewKÌqvq A ˆhŒM nGœQ K wg^vbj L B^vbj M wg^vbÅvj N B^vbÅvj 10. wmiKv nGjv B ‰i % `ËeY K 2 @ 4% L 6 @ 10% M 16 @ 20% N 20 @ 25% 11. Lv`Å`ËeÅ bÓ¡ nIqvi KviY i. AYyRxGei AvKÌgY ii. ivmvqwbK wKÌqv iii. ‰bRvBGgi cÉfve wbGPi ˆKvbwU mwVK? A K i I ii L i I iii M ii I iii N i, ii I iii 12. ˆhme LvevGi ‰wmW AvGQ ZvG`i wiUwUÆs Zvcgvòv K 82C L 105C M 115C N 121C 13. ˆÕ¡wijvBGRkb Kivi RbÅ cÉGqvRbxq Zvcgvòv KZ? K 101C L 111C M 121C N 131C 14. ‰K Kvc wKÌg `yGa Kx cwigvY kwÚ ^vGK? K 72 KÅvjwi L 82 KÅvjwi M 92 KÅvjwi N 149 KÅvjwi 15. wN-‰i Smoke point KZ? K 350 –375C L 400 –425C M 425 –450F N 450 –475F 16. K‡wòg ˆMvjvc Rj cÉÕ§Z Kivi RbÅ ŠZixK‡Z wgkÉYGK KZw`b ˆXGK ivLv cÉGqvRb? K 3–4 L 5–6 M 6 –7 N 7–8 17. ™Ïvm wKÑbvGi ˆZj I MÉxR `ƒixf„Z KGi ˆKvbwU? K NH3 L wfGbMvi M wWUviGR´Ÿ N AvBGmvGcÉvcvBj 18. ˆmvwWqvg jGiU ˆhŒMwU i. wWUviGR´Ÿ ii. KuvGPi c†Ó¡Zj wmÚKviK iii. 16 KveÆGbi nvBGWÈvKveÆb Ask ^vGK wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 19. myGKÌvR ˆ^GK ™ÏyGKvR Drcv`b ˆKvbwUi DcwÕ©wZGZ NGU? K RvBGgR L BbfviGUR M AÅvwmGUveÅvKUi N bÕ¡K 20. AwaKvsk AYyRxGei esk weÕ¦vGii AbyK„j pH cwimi nGjv K 3 4 L 4.5 5.5 M 7 8 N 6.5 7.5 21. Lv`Å wbivcîvi mvG^ mÁ·wKÆZ i. chÆvµ¦ mieivn ii. KÌq ÞgZv iii. LvG`Åi ŠewPòÅ ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii DóxcKwU co ‰es 22 I 23 bs cÉk²àGjvi Dîi `vI: RvZxq AvPvi cÉwZGhvwMZvi RbÅ ˆKvGbv evQ wePvi bv KGiB iwngv wgwÓ¡ I dwi`v UK AvPvi ŠZwi KGi| ‰ RbÅ Zviv ˆZj, wfGbMvi I wPwb eÅenvi KGi| wKQyw`b cGi iwngvi AvPvi cuGP ˆMGjI dwi`vi AvPvi ‰K eQi fvGjv ^vKj| 22. iwngvi AvPvGii cuGP hvIqv ˆiva KiGZ nGj i. wPwbi cwigvY evovGZ nGe ii. AekÅB wfGbMvGii cwigvY evovGZ nGe iii. ˆewk mgq Zvc w`GZ nGe| ˆKvbwU mwVK? K i L ii M i I ii N i, ii I iii 23. dwi`vi AvPvi fvGjv ^vKvi meGPGq ài‚Z½cƒYÆ KviY ˆKvbwU? K wbÁ² pH gvb L ˆZGji cwigvY M wPwbi cwigvY N AvGgi gvb 24. kvj `ya i. ˆivM cÉwZGiva ÞgZv e†w«¬ KGi ii. ‰w´ŸevGqvwUK mg†«¬ iii. wk÷i Þzav ˆgUvq| wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 25. AvPvi, mm BZÅvw` msiÞGY wcÉRviGfwUf wnGmGe eÅen†Z nq ˆKvbwU? K wfGbMvi L miweK ‰wmW M ˆcÉvcvGbvwqK ‰wmW N ˆebGRvwqK ‰wmW Dîi 1 M 2 M 3 M 4 L 5 L 6 L 7 N 8 K 9 L 10 L 11 N 12 L 13 L 14 L 15 N 16 K 17 N 18 K 19 L 20 N 21 K 22 K 23 K 24 N 25 K

10 cvGéix m†Rbkxj imvqb cÉ^g cò ‰Kv`k-«¼v`k ˆkÉwY mgq: 2 N¥Ÿv 35 wgwbU m†Rbkxj iPbvgƒjK cÉk² gvb-50 1. K. wMÉb ˆKwgwÕ¡È Kx? 1 L. wcÉRviGfwUf wnGmGe wPwb I jeGYi f„wgKv ˆjGLv| 2 M. Kx Kx c«¬wZGZ 1 bs cvGòi wmGÕ¡gGK 2 bs cvGòi wmGÕ¡Gg cwiYZ Kiv hvq eÅvLÅv KGiv| 3 N. DóxcGKi 1 bs cvò I 2 bs cvGòi KYvmgƒGni AvPiGYi wf®²Zv AvGjvPbv KGiv| 4 2. CH3COOH NaOCl A B K. wfGbMvi Kx? 1 L. Lv`Å `ËeÅ msiÞGY Lv`ÅGK evqygyÚ ivLv nq ˆKb? 2 M. UqGjU wKÑbvi cÉÕ¦ywZGZ DóxcK B ‰i f„wgKv AvGjvPbv KGiv| 3 N. ™Ïvm wKÑbvi cÉÕ¦ywZGZ DóxcK A I B ‰i ˆKvbwU ˆewk DchyÚ eGj gGb Ki AvGjvPbv KGiv| 4 3. wgGmm Rvgvb gvQ ˆKŒUvRvZKiGYi RbÅ Zv ˆWÈwms, weÐwWs, (eËvBwbs), ÷Ó•KiY I cƒeÆ-i®¬b cÉwKÌqv mÁ·®² KGi ‰KwU mvaviY wUGbi ˆKŒUvq fwZÆ Kivi gyüGZÆ ‰KwU ˆdvb Kj ˆcGjb| ˆdvb KjwU ˆcGq wZwb ˆKŒUvi gyL fvjfvGe e®¬ KGi ˆiGL AwdGm ˆMGjb| evmvq wdGi ‰Gm wZwb ‰K gvGmi RbÅ evBGi PGj ˆMGjb| ‰K gvm ci ‰Gm ˆ`LGjb msiwÞZ gvQ bÓ¡ nGq ˆMGQ| K. ˆKŒUvRvZKiY Kx? 1 L. AÅvGgvwbqv ˆKb ™Ïvm wKÑbvGi eÅen†Z nq? 2 M. mvaviY wUGbi ˆKŒUvq gvQ msiÞY Kivi ˆKvb mxgve«¬Zv AvGQ wKbv eÅvLÅv KGiv| 3 N. wgGmm Rvgvb gvQ msiÞGY wK wK fzj KiGjb hvGZ gvQ bÓ¡ nGq ˆMj, KviYmn eYÆbv KGiv| 4 4. ŠekvL gvGmi Kvj‹ekvLx SGo evMvGb cÉPzi Avg cGo ˆMGQ| Zzwg AGbKàGjv KuvPv Avg KzwoGq wbGq ‰Gm w`Gj ˆZvgvi gv ˆmàGjv wewf®² cÉwKÌqvKiY KGi msiÞGYi eÅeÕ©v KiGjb, hvGZ mviv eQi eÅenvi Kiv hvq| K. Lv`Å `ËeÅ bÓ¡ nIqvi cÉavb wZbwU cÉavb KviY DGÍÏL KGiv| 1 L. cuPb KvGR mvnvhÅKvix welqàGjv wK wK? ‰àGjv wKfvGe cuPb KvGR mvnvhÅ KGi? 2 M. gv Lye mnGR ˆKvb iKg ivmvqwbK eÕ§ eÅenvi bv KGi KxfvGe msiÞGYi RbÅ cÉwKÌqvKiY KiGeb? msGÞGc eÅvLÅv KGiv| 3 N. ivmvqwbK eÕ§ eÅenvi KGi KxfvGe KuvPv AvgàGjvGK msiÞGYi RbÅ cÉwKÌqvKiY KiGeb? msiÞY KvGR eÅen†Z ˆKwgKÅvjàGjvi KvRmn msiÞY c«¬wZ eYÆbv KGiv| 4 5. kxZKvGj evRvGi cÉPzi UGgGUv cvIqv hvq ‰es `vgI Kg ^vGK| wK¯§ kxZ ˆkl nGjB UGgGUvi `vg evoGZ evoGZ `k àGYiI ˆewk nGq hvq| ‰K eÅwÚ msiÞGYi RbÅ 20 ˆKwR UGgGUv wKGb Avbj| Aci eÅwÚ Zvi euvk evMvGbi euvkGKvij evwYwRÅKfvGe evRviRvZ KiGZ Pvq| K. gΟ wfGbMvi Kx? 1 L. mvmGcbkb aiGbi Jla SuvwKGq wbGZ nq ˆKb? 2 M. DóxcGKi w«¼Zxq eÅwÚ eÅemvwqKfvGe jvfevb nIqvi DGóGkÅ Kx c`GÞc wbGZ cvGi hywÚmn eYÆbv KGiv| 3 N. H eÅwÚ UGgGUvGK Pvcxq ˆKŒUvRvZ bvwK eGqwjs IqvUvi ˆKŒUvRvZKiY c«¬wZ eÅenvi KGi msiÞY KiGe? ˆZvgvi DîGii Õ¼cGÞ hywÚ `vI| 4 6. bvRbxb ˆeMg evRvi ˆ^GK wKQy KuvPv Avg wKbGjb| ˆmàGjvGK wZwb cwiÓ•vi KGi ˆKGU ˆivG` ÷wKGq wKQy jeY I gmjv ˆhvM KGi myÕ¼v`y AvPvi ŠZwi KiGjb| AZtci ‰KwU ˆKŒUv wbGq wfGbMvGi wbgwäZ KGi ivLGjb| cGi wZwb `xNÆw`b chƯ¦ ‰ AvPvi ˆLGZ cviGjb| K. ‰w´ŸgvBGKÌvweqvj Kx? 1 L. Lv`Å wbivcîvq imvqGbi `ywU f„wgKv DGÍÏL KGiv| 2 M. wfGbMvi KxfvGe DÚ AvPviGK `xNÆw`b hveZ myÕ¼v`y ˆiGLwQGjb? 3 N. bvRbxb ˆeMg hw` KuvPv AvGgi cwieGZÆ cvKv Avg AvbGZb ˆmGÞGò wZwb DÚ AvgGK ˆKŒUvRvZKiGYi RbÅ ˆKvb c«¬wZ AejÁ¼b KiGZb eÅvLÅv KGiv| 4 7. kÅvgjx ivbx Zvi m¯¦vbGK `ya LvIqvGbvi RbÅ wKQy cwigvY Mfxi `ya Mig KGi ˆUweGj ivLGjb| wK¯§ AmveavbZvekZ ‰K dvwj ˆjey DÚ `yGa cGo ˆMj ‰es wKQyÞGYi gGaÅ Zv RgvU euvaj| K. KjGqW Kx? 1 L. KjGqW I mvmGcbkGbi gGaÅ `ywU cv^ÆKÅ ˆjGLv| 2 M. ˆjeyi im ˆhvM nIqvi mvG^ mvG^ DóxcGK DwÍÏwLZ `ya RgvU euvavi KviY eÅvLÅv KGiv| 3 N. DóxcGKi `ya nGZ KxfvGe gvLb cÉÕ§Z Kiv hvq weGkÏlY KGiv| 4 8. mÁ·ÉwZ miKvi DGÍÏwLZ `ywU ivmvqwbK c`v^Æ Avg`vbx wbwl«¬ KiGQ| wWbÅvPviW B^vBj cÅviv AÅvwgGbv ˆebGRvGqU H2N C2H5OH K. KviGbvev Kx? 1 L. wjcwÕ¡K ‰i cÉavb Dcv`vbàGjv Kx Kx? 2 M. miKvGii mvÁ·ÉwZK ‰B wm«¬vG¯¦ ˆKvb cÉmvabx mvgMÉxi Drcv`b eÅvnZ nGZ cvGi? eÅvLÅv KGiv| 3 N. AvGjvPÅ ivmvqwbK c`v^Æ `ywU ˆKb cÉmvabx mvgMÉxGZ eÅenvi Kiv AvekÅK? hywÚmn weGkÏlY KGiv| 4

gGWj ˆUÕ¡ 1 1 gGWj 1 imvqb cÉ^g cò welq ˆKvW: 1 7 6 mgq 25 wgwbU eüwbeÆvPwb cÉk² cƒYÆgvb 25 [weGkl `ËÓ¡eÅ: mieivnK‡Z eüwbeÆvPwb AfxÞvi DîicGò cÉGk²i KÌwgK bÁ¼Gii wecixGZ cÉ`î eYÆmÁ¼wjZ e†îmgƒn nGZ mwVK/mGeÆvrK‡Ó¡ DîGii e†îwU () ej cGq´Ÿ Kjg «¼viv mÁ·ƒYÆ fivU KGiv| cÉwZwU cÉGk²i gvb 1|] 1. ˆKvb AvqbxKib wefGei KÌgwU mwVK? K Be > B > N > O L Be > O > N M N > O > Be > B N N > O > Be > B 2. ‰KwU AvqwbK ˆhŒGMi AwaKZi mgGhvRx nIqvi mÁ¿ebv i. KÅvUvqGbi AvKvi ˆQvU I AÅvbvqGbi AvKvi eo nGj ii. KÅvUvqGbi AvKvi ˆQvU I PvRÆ DœP nGj iii. AÅvbvqGbi AvKvi ˆQvU I DœP PvRÆ ^vKGj wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 3. wbGPi ˆRvoàwji ˆKvb `ywU ˆgŒj chÆvq mviYxi ‰KB MÉ‚Gc AeÕ©vb KGi| K Na -Mg L Ca La M Mg-Be N Mg - Ga 4. NH3, NH4 + , NH2 – ‰i e®¬b ˆKvGYi mwVK KÌg nGjv K NH3 > NH4 + > NH2 L NH3 > NH2 – > NH4 + M NH2 – > NH4 + > NH3 N NH4 + > NH3 > NH2 5. wbGÁ²i ˆKvb ˆhŒMwU cvwbGZ A`ËeYxq? K NaCl L RbCl M CsCl N LiCl 6. wbGÁ²i ˆhŒMmgƒGni gGaÅ ˆKvbwUi Mjbvâ meGPGq ˆewk? K H2S L H2O M H2Se N H2Te 7. wbGÁ²i ˆhŒMmgƒGni gGaÅ (*) ZviKvwPwn×Z ˆKvb KveÆGb sp3 msKivqb we`Ågvb? K CH3 * CH = CH2 L CH3 * CHO M CH3 * COOH N (CH3)2 * CHOH DóxcGKi AvGjvGK 8 I 9 cÉGk²i Dîi `vI: i. wPwb + cvwb BbfviGUR A + dÌzGÙvR ii. A RvB GgR B + CO2 iii. B RviY C RviY D 8. B ˆhŒMwUi bvg Kx? K B^vbj L wfGbMvi M ™ÏyGKvR N B^vbÅvj 9. D -‰i `ËeY eÅen†Z nq i. msiÞK wnmvGe ii. evdvi `ËeY ŠZwiGZ iii. UqGjU wKÑbvi wnmvGe wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 10. imvqb cixÞvMvGi eÅen†Z ˆKvb `ËeÅwU dzmdzGmi ÞwZ KGi? K ˆKGivwmb L H2SO4 M TNT N Cl2(g) 11. H2SO4 ‰i ˆKvb aGgÆi RbÅ ‰i msÕ·GkÆ Z½K cyGo hvq? K RviY L weRviY M wbi‚`b N cÉfveb 12. cj-eywã eÅvGjG´Ö (evGg 0 ˆ^GK WvGb 100) 10 mg fiwewkÓ¡ ivBWvi eÅenvi KiGj ivBWvi aË‚eK nGjv K 0.0001g L 0.0002g M 0.1g N 0.02g 13. ‰KwU ˆmvWvAÅvGki `ËeGYi Nbgvòv 6.2 10–7 molL–1 nGj ‰B `ËeGYi pH KZ? K 2.1 L 6.8 M 7.8 N 8.7 14. Zvcgvòv e†w«¬ KiGj wewKÌqvi nvi e†w«¬ cvq KviY i. wewKÌqK mgƒGni msNlÆ msLÅv evGo ii. wewKÌqvi mwKÌqY kwÚ KGg iii. wewKÌqK mgƒGni MwZkwÚ evGo wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 15. wbGPi ˆKvbwU evdvi `ËeY bq? K CH3COH + CH3COONa L H2CO3+ NaHCO3 M HClO2 + CH3COOH N NaH2PO4 + Na2HPO4 16. KvGPi h¯¨cvwZ KÑÅvwÁ·s Kivi mgq ˆKvbwU eÅenvi Kiv DwPZ? K KvMR L Õ·é cÅvW M MÉxR N AÅvmGeÕ¡m bxU 17. O2 MVb ZvGci gvb KZ? K 0 L 110.5 M 273 N 498 18. cÉfveK ˆKvb wewKÌqvq i. wewKÌqK AYyi MwZkwÚ e†w«¬ KGi ii. mwKÌqY kwÚ nËvm KGi iii. wewKÌqK AYyGZ AwaGkvlZ nq wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 19. ˆKvb DckwÚÕ¦Gi mGeÆvœP BGjKUÇb aviY ÞgZv KZ? K 2n2 L 2l +1 M 2(l+1) N 2(2l +1) 20. AvqZwbK dÑvÝ eÅen†Z nq K cÉgvY `ËeY ŠZwiGZ L gƒj `ËeY ŠZwiGZ M àYMZ weGkÏlY N `ËeY msiÞGY 21. Awe÷«¬ Lv`Å jeGYi D mÁ·ƒÚ `ËeGY HCl Mvp Kiv nq i. we÷«¬ Lv`Å jeY cÉÕ§wZi RbÅ ii. Cl ‰i Nbgvòv e†w«¬ RbÅ iii. ‰i AvqwbK àYdj e†w«¬i RbÅ wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 22. ˆevi Zî½ cÉGhvRÅ ˆKvbwUi RbÅ (cÉZxKàGjv cÉPwjZ A^Æenb KGi bv) K 1A+ L 3B+ M 4C3+ N 4C2+ 23. wbGPi ˆKvqv´Ÿvg msLÅvi ˆKvb ˆmBwU mÁ¿e bq? K 2, 2, + 1, + 1 2 L 3, 0 , 0, + 1 2 M 3, 2, 0, 1 2 N 4, 3, 0, 1 2 wbGPi DóxcKwU AvGjvGK 24 I 25 bs cÉGk²i Dîi `vI: 48A2+ AÁÏxq cvò-1 30B2+ H2S AÁÏxq cvò-2 24. B2+ Avqb mbvÚKiGY eÅen†Z nq K K4[Fe(CN)6] L K2H2Sb2O7 M BaCl2 N CaC2O4 25. DóxcGKi gGZ i. 1bs cvGò AatGÞc coGe ii. 2bs cvGò AatGÞc coGe iii. Þvixq gvaÅGg Dfq cvGò AatGÞc coGe wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii Dîi 1 N 2 K 3 M 4 N 5 N 6 L 7 N 8 K 9 K 10 L 11 M 12 L 13 M 14 N 15 M 16 L 17 N 18 M 19 N 20 K 21 N 22 M 23 K 24 K 25 N gGWj ˆUÕ¡: cƒYÆvã cÉÕ§wZ

2 cvGéix m†Rbkxj imvqb cÉ^g cò ‰Kv`k-«¼v`k ˆkÉwY mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² cƒYÆgvb: 50 [`ËÓ¡eÅ : Wvb cvGki msLÅv cÉGk²i cƒYÆgvb ævcK| cÉ`î DóxcKàGjv gGbvGhvM w`Gq co ‰es cÉ`î AvUwU m†Rbkxj cÉk² ˆ^GK ˆh ˆKvGbv cuvPwU cÉGk²i Dîi `vI|] 1. k = Ae– Ea RT K. AmIqvGΣi jNyKiY mƒòwU ˆjGLv| 1 L. H – F g†`y ‰wmW eÅvLÅv KGiv| 2 M. T evoGj KxfvGe k evGo? eÅvLÅv KGiv| 3 N. DóxcGKi ZG^Åi AvGjvGK Ea wbYÆGqi MvwYwZK c«¬wZ weGkÏlY KGiv| 4 2. 1. AgCl(s) HoooI Ag+ (aq) + Cl– (aq); Ksp (AgCl) = [Ag+ ] [Cl– ] 2. CaF2(s) HooooooI Ca2+(aq) + 2F– (aq) 3. Bi2S3(s) HooooooI 2Bi3+(aq) + 3S2– (aq) K. Zwor ˆPŒÁ¼Kxq eYÆvwj Kx? 1 L. ˆKÌvgvGUvMÉvwd ejGZ Kx ˆevS? 2 M. 1 bs AbymvGi 2, 3 bs ‰i RbÅ Ksp KZ nGe? 3 N. 1 bs mvgÅveÕ©vq Cl– Avqb ˆhvGM AgCl-‰i `ËeYxqZv cwiewZÆZ nGe Kx? weGkÏlY KGiv| 4 3. cixÞvMvGi AvjgMxi I mygb àYMZ weGkÏlY KvGRi RbÅ ‰KwU bgybv eÕ§i h^vKÌGg 1.0 g I 100 mg wbGq 20 mL I 2 mL `ËeY ŠZwi KGi cixÞv KvR ÷i‚ KGi| K. ˆgvjviwU Kx? 1 L. ˆgRvwis wmwj´£vGi Mvp HCl ‰wmW wbfzÆjfvGe cwigvGci RbÅ KiYxq Kx? 2 M. DóxcK AbymvGi mygGbi eÅen†Z weGkÏlY c«¬wZi myweav I Amyweavmgƒn DGÍÏL KGiv| 3 N. DóxcK AbymvGi AvjgMxi I mygGbi eÅen†Z weGkÏlY c«¬wZi ZzjbvgƒjK AvGjvPbv KGiv| 4 4. X nvBGWÈvGRGbi ˆevi KÞc^ Y Z W + K. AiweUvj Kx? 1 L. 3d mÁ¿e nGjI 3f mÁ¿e bq ˆKb? 2 M. W KÞcG^ KqwU cƒYÆÕ·±`b nGe? wnGme KGi ˆ`LvI| 3 N. DóxcGKi X KÞcG^i eÅvmvaÆ AGcÞv Z KÞcG^i eÅvmvaÆ 9 àY DwÚwUi h^v^ÆZv cÉgvY KGiv| 4 5. `ywU ˆgŒGji ewntÕ© Õ¦Gii BGjKUÇb webÅvm wbÁ²i…c: A .......... 3s2 3p1 B ........ 3s2 3p5 K. wjMÅv´£ Kx? 1 L. avZe cigvYy AGcÞv Zvi AvqGbi eÅvmvaÆ ˆQvU nq ˆKb? 2 M. A ‰i Õ©vqx AÝvBGWi cÉK‡wZ mgxKiYmn eÅvLÅv KGiv| 3 N. AbyœP Zvcgvòvq AB3 ‰i AvYweK w«¼àY nGq hvq-DwÚwUi h^v^ÆZv weGkÏlY KGiv| 4 6. wgGmm AÅvwb ˆeMg AvGgi AvPvi wbw`ÆÓ¡ Nbgvòvi Lv`Å jeY I wPwbi `ËeY ‰es cvãvm gvQ msiÞGY H ‰KB Lv`Å msiÞK eÅenvi KGib| wKQyw`b ci ˆ`Lv hvq ŠZwiK‡Z AvPvi h^vh^ msiwÞZ ^vKGjI gvQàGjv cuGP wekÉx `yMÆ®¬ m†wÓ¡ nGqGQ| K. Mi‚i `ya njy` nq KLb? 1 L. KMS ejGZ Kx ˆevS? 2 M. DóxcGK eÅen†Z Lv`Å msiÞK«¼Gqi wKÌqvGKŒkj eÅvLÅv KGiv|3 N. gvQàGjv cPGbi `ywU cÉwKÌqv wewKÌqvmn weGkÏlY KGiv| 4 7. 18.5% N2O4 ‰i weGqvRGb NO2 Drc®² nq| hLb Zvcgvòv 298K ‰es Pvc 1atm| K. Þvixq evdvi Kx? 1 L. e®¬b kwÚ I wewKÌqv Zvc Kx? 2 M. DóxcGKi wewKÌqv AbymvGi Kp ‰i ivwkgvjv wbYÆq KGiv| 3 N. Zvcgvòv ‰KB ˆiGL, 0.5 atm PvGc DóxcGKi wewKÌqvi weGqvRb gvòv wbYÆq Kiv Kx mÁ¿e? hywÚmn weGkÏlY KGiv| 4 8. 2000 1500 1000 500 3 4 5 6 7 8 9 10 cvigvYweK msLÅv AvqwbKiY kwÚ B C N O R N Li Ba K. AvswkK cvZb Kx? 1 L. 25C ˆZ Ag2CrO4 ‰i `ËveÅZv 8 105 M. `ËveÅZv àYdj ˆei KGiv| 2 M. DóxcGK ewYÆZ cigvYy àwji AvqbxKiY kwÚi cv^ÆGKÅi ˆcQGb KviY AvGjvPbv KGiv| 3 N. cvigvYweK msLÅvi mvG^ BGjKUÇb AvmwÚi MÉvd AsKb KGiv ‰es Zv eÅvLÅv KGiv| 4

gGWj ˆUÕ¡ 3 3 gGWj 2 imvqb cÉ^g cò welq ˆKvW: 1 7 6 mgq 25 wgwbU eüwbeÆvPwb cÉk² cƒYÆgvb 25 [weGkl `ËÓ¡eÅ: mieivnK‡Z eüwbeÆvPwb AfxÞvi DîicGò cÉGk²i KÌwgK bÁ¼Gii wecixGZ cÉ`î eYÆmÁ¼wjZ e†îmgƒn nGZ mwVK/mGeÆvrK‡Ó¡ DîGii e†îwU () ej cGq´Ÿ Kjg «¼viv mÁ·ƒYÆ fivU KGiv| cÉwZwU cÉGk²i gvb 1|] 1. wbGPi ˆKvbwU cÉvBgvix Õ¡Åv´£vWÆ c`v^Æ? K KMnO4 L K2Cr2O7 M H2C2O4 N Na2C2O4 wbGPi mviwY jÞ Ki ‰es cÉk²àGjvi Dîi `vI : MÉ‚c chÆvµ¦ 1 14 16 17 n =2 E n = 3 A D Q 2. DóxcGKi DE2- ˆhŒMwU? i. cwjgvi MVb KGi ii. AÁÏagÆx iii. wbÁ² MjbvsK wewkÓ¡ wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 3. DóxcGKi AQ ˆhŒM mÁ·GKÆ ˆKvbwU mwVK bq? K ˆhŒMwU mgGhvRx cÉK‡wZi nq L MwjZ AeÕ©vq we`yÅr cwienb KGi M DœP MjbvsK I Õ¹zUbvsK wewkÓ¡ N ˆcvjvi `ËveGK `ËeYxq 4. wbGPi ˆKvbwU 4-wWwRU eÅvGjG´Öi gvc? K 1.024 L 10.24 M 22.1202 N 2212.02 5. ˆh ˆKvb DckwÚÕ¦Gii BGjKUÇb aviY ÞgZv nj K 2n2 L (2l +1) M 2 (2l + 1) N 2 (l +1) 6. BGjKUÇb Amxg nGZ 3q ˆkGj Õ©vbv¯¦wiZ nGj Drc®² nq K jvBgÅvb wmwiR L evgvi wmwiR M cÅvGøb wmwiR N eËvGKU wmwiR 7. cwiGek ev®¬e c«¬wZ nGjv? i. gÅvGKÌv c«¬wZ ii. gvBGKÌv c«¬wZ iii. ˆmwg gvBGKÌv c«¬wZ wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii wbGPi wewKÌqvi AvGjvGK cÉk² `ywUi Dîi `vI: A2(g) + 3B2 (g) HooooI 2AB3 (g); H = + Ve 8. DóxcGKi wewKÌqvwUGZ cÉfveK ˆhvM KiGj wK NUGe? K Kp e†w«¬ cvGe L Kc e†w«¬ cvGe M wewKÌqvi nvi e†w«¬ cvGe N mvgÅveÕ©v Wvb w`GK mGi hvGe 9. DóxcGK Kc wewKÌqvwUGZ ‰i ‰KK ˆKvbwU K mol1 L2 L ml2 L2 M mol2 L2 N mol2 L2 10. 250mL 0.1M `ËeGY wK cwigvY Na2CO3 ^vGK| K 2.65g L 5.3g M 10.6g N 106g 11. K4[Fe(CN)6] «¼viv wbGPi ˆKvb Avqb mbvÚKiY Kiv hvq? i. Fe3+ ii. Cu2+ iii. Zn2+ wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 12. ŠRe ˆhŒGM KveÆb I nvBGWÈvGRb mbvÚKiGY eÅen†Z nq? K NMR L MRI M IR N UV 13. ˆKvbwU UÅvjKg cvDWvGii cÉavb Dcv`vb? K 3MgO.4SiO2.H2O L CaCO3.2MgCO3 M C4H10O4 N Na2B4O7.10H2O 14. 0.05M Ca (OH)2 ‰i pH KZ? K 13 L 12.70 M 2 N 1.3 15. wbGPi ˆKvbwU K‡wòg Lv`Å msiÞK? K NaCl L C12H22O11 M HCHO ‰i 40% Rjxq `ËeY N C6H5OH 16. UqGjU wKÑbvGii gƒj Dcv`vb ˆKvbwU? K Na2CO3 L NaOH M (NH4)2 CO3 N NH4OH 17. `ËeGYi pH 2 ˆ^GK 3 nGj `ËeGY H+ AvqGbi Nbgvòv K `k àb e†w«¬ ˆcj L `k àb nËvm ˆcj M Qq àb e†w«¬ ˆcj N ‰K àY nËvm ˆcj 18. wfUvwgb we-1 I wfUvwgb we-2 cvIqv hvq ˆKvbwUGZ? K AvbviGm L euvkGKviGj M ˆcqvivq N AvGcGj 19. wbGPi ˆKvb ˆhŒMwUi mgGhvRx ŠewkÓ¡Å meGPGq Kg K A1F3 L AlCl3 M AlBI3 N All3 20. La (57) ‰i ewntÕ¦ ˆkGji BGjKUÇb webÅvm? K 4f1 6s2 L 412 6s1 M 5d1 6s2 N 6s2 6p1 21. gvsm ˆKŒUvRvZKiGY eÅen†Z `ËeY nGjv i. 2% Lv`Å jeY ii. 10% Lv`Å jeY iii. 2% wPwbi `ËeY wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 22. Ag(NH3)2Cl ˆhŒMwUGK KZ aiGbi e®¬b we`Ågvb? K 1 L 2 M 3 N 4 23. 1mol C2H5OH ‰i cƒYÆ `nGb KZ ˆgvj CO2 Drc®² nq? K 1mol L 2mol M 3mol N 40ml 24. LvG`Åi ˆKvb Dcv`vbwU cPGbi RbÅ `vqx? K jeY L wfUvwgb M cvwb N wjwcW 25. NH4 + ‰i msKiY I e®¬b ˆKvGYi gvb KZ? K sp3 I 109.5 L sp3 I 107.5 M sp3 I 107 N sp3 I 104.5 Dîi 1 L 2 K 3 K 4 M 5 M 6 M 7 M 8 M 9 L 10 K 11 N 12 K 13 K 14 K 15 M 16 L 17 L 18 L 19 K 20 M 21 L 22 M 23 L 24 N 25 K

4 cvGéix m†Rbkxj imvqb cÉ^g cò ‰Kv`k-«¼v`k ˆkÉwY mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² cƒYÆgvb: 50 [`ËÓ¡eÅ : Wvb cvGki msLÅv cÉGk²i cƒYÆgvb ævcK| cÉ`î DóxcKàGjv gGbvGhvM w`Gq co ‰es cÉ`î AvUwU m†Rbkxj cÉk² ˆ^GK ˆh ˆKvGbv cuvPwU cÉGk²i Dîi `vI|] 1. 10 mL 0.25 M AB `ËeGY 1mL 0.1 M XY `ËeY ˆhvM Kiv nGjv| 25C Zvcgvòvq AY `ËeGYi `ËveÅZvi àYdj 1.7 10–10| K. AvBGmvGUvb Kx? 1 L. ˆbmjvi `ËeGY Þvi eÅenvi Kiv nq ˆKb? 2 M. DóxcGKi wgkÉGYi Y ‰i Nbgvòv mol/L ‰ wnGme KGiv| 3 N. DóxcGKi wgkÉGY ˆKvGbv AatGÞc coGe wKbv MvwYwZK fvGe weGkÏlY KGiv| 4 2. 2NH4Cl + CaO 2NH3 + CaCl2 + H2O 2NH4Cl + Ca(OH)22NH3 + CaCl2 + 2H2O K. ÞqKvix c`vG^Æi msæv `vI| 1 L. KvGPi h¯¨cvwZ cwiÓ•vGii ˆÞGò mZKÆZvàGjv ˆjGLv| 2 M. DóxcGKi cÉavb Drcv` cÉÕ¦ywZGZ Kx Kx jÅveGiUwi mvgMÉx I wbivcîv mvgMÉx cÉGqvRb nGe? 3 N. wewKÌqv«¼Gqi cÉavb Drcv` ˆPvGL jvMGj Kx KiYxq? hywÚmn weGkÏlY KGiv| 4 3. wbGP chÆvq mviwYi ‰KwU Lw´£Z Ask ˆ`Iqv nGjv : He X Y K. ivmvqwbK e®¬b Kx? 1 L. cvwbGZ WvBGcvGji DcwÕ©wZi KviY eÅvLÅv KGiv| 2 M. DóxcGKi ˆgŒj«¼q wbGRG`i gGaÅ ˆhŒM MVGb ˆKvb aiGbi e®¬b MVb KGi? wPòmn eÅvLÅv KGiv| 3 N. DóxcGKi ˆgŒj«¼Gqi nvBWÈvBGWi ˆfŒZ aGgÆi cv^ÆGKÅi ˆhŒwÚK KviY weGkÏlY KGiv| 4 4. 100 mL 2.5 g H-COOH 1 g KOH pKa = 3.8 K. wewKÌqvi nvi Kx? 1 L. H2(g) + I2 (g) HooooI 2HI(g) ; wewKÌqvq PvGci cÉfve AvGQ Kx? eÅvLÅv KGiv| 2 M. DóxcGK ÷ay AÁÏ ^vKGj Zvi pH KZ nGe? wnGme KGiv| 3 N. DóxcGKi wgkÉGY mvgvbÅ ‰wmW/Þvi ˆhvGM pH gvGb ˆKvGbv cwieZÆb nGe wKbv pH wbYÆqcƒeÆK weGkÏlY KGiv| 4 5. nvBGWÈvGRGbi ‰KwU BGjKUÇb ˆevi KÞcG^i 5g (A) kwÚÕ¦i nGZ 2q kwÚÕ¦Gi (B) ‰es AbÅ ‰KwU BGjKUÇb 3q kwÚÕ¦i (C) nGZ 2q kwÚÕ¦Gi (B) ˆbGg Avmj| [RH = 109678 cm1 ]| K. cvZb Kx? 1 L. mgAvqb cÉfve ejGZ Kx eyS? 2 M. C ˆ^GK B ˆZ ˆbGg Avmv 1 mol ˆdvUGbi kwÚi gvb wnGme KGiv| 3 N. A nGZ B ˆZ ˆbGg Avmv BGjKUÇGbi weKxYÆ kwÚ `†kÅgvb nGe wK bv weGkÏlY KGiv| 4 6. (i) AB2 + 3O2 AO2 + 2BO2 ; H1 = 1109.17 kJmol–1 (ii) A + O2 CO2 ; H2 = – 394.55 kJmol–1 (iii) B + O2 SO2 ; H3 = 297.39 kJmol–1 K. Kp Kx? 1 L. wbiGcÞ `ËeGYi pH 7 nq ˆKb? eÅvLÅv KGiv| 2 M. "A ‰i `nb Zvc AO2 ‰i msNUb ZvGci mgvb”eÅvLÅv KGiv| 3 N. “DóxcGKi ZG^Åi AvGjvGK AB2 ‰i MVb Zvc wbYÆq Kiv mÁ¿e” DwÚwUi h^v^ÆZv cÉgvY KGiv| 4 7. H2O 100 80 60 40 0 20 40 60 80 100 20 HF NH3 H2S HCl PH3 HBr ASH3 H2Se H2Te SbH3 Hl BiH3 B.Pt ( C) K. mGeÆvœP KZàwj AÅvGgvwbqv AYy ˆKvevΟ AvqGbi mvG^ hyÚ nGZ cvGi? 1 L. BeCl2 ‰i mÁ¿veÅ RÅvwgwZK MVb wK nIqv DwPZ? 2 M. DóxcGKi ˆjLwPGòi cÉ^g I Z‡Zxq jvBGbi cÉ^g ˆhŒMmgƒGni e®¬b ˆKvY ‰G`i msKiGYi mvG^ AmãwZcƒYÆ ˆKb? 3 N. Õ¹zUbvsGKi cwieZÆb DóxcGKi wPGòi AvGjvK weGkÏlY KGiv| 4 8. ‰KRb imvqbwe` evRvi ˆ^GK `ya ‰es wmiKv wKGb AvbGjb| M†nKgÆx fyGj `yGa wmiKv wgwkGq w`Gjb| ‰GZ `ya bÓ¡ nGq ˆMGQ ˆfGe M†nKgÆx Zv ˆdGj w`GZ ˆMGj imvqbwe` ˆdjGZ wbGla KGi ejGjb wP¯¦vi KviY ˆbB| K. `yGa cvwbi kZKiv cwigvY KZ? 1 L. ˆnqvi ˆRGj ‰Gmbwkqvj AGqj eÅenvi Kiv nq ˆKb? 2 M. M†nKgÆx `ya bÓ¡ nGq ˆMGQ fveGjb ˆKb? eÅvLÅv Ki| 3 N. D«¿„Z mgmÅvwUi jvfRbK mgvavb weGkÏlY Ki| 4 NH3 cÉavb Drcv` pKa = 3.28

gGWj ˆUÕ¡ 5 5 gGWj 3 imvqb cÉ^g cò welq ˆKvW: 1 7 6 mgq 25 wgwbU eüwbeÆvPwb cÉk² cƒYÆgvb 25 [weGkl `ËÓ¡eÅ: mieivnK‡Z eüwbeÆvPwb AfxÞvi DîicGò cÉGk²i KÌwgK bÁ¼Gii wecixGZ cÉ`î eYÆmÁ¼wjZ e†îmgƒn nGZ mwVK/mGeÆvrK‡Ó¡ DîGii e†îwU () ej cGq´Ÿ Kjg «¼viv mÁ·ƒYÆ fivU KGiv| cÉwZwU cÉGk²i gvb 1|] 1. eyÅGiU cwiÓ•vi KiGZ wbGPi ˆKvbwU eÅen†Z nq? K mvevb L wWUviGR´Ÿ M ˆKÌvwgK ‰wmW N wfGbMvi 2. ivmvqwbK c`v^ÆGK ÷Kbv ivLGZ eÅen†Z nq K ˆWwmGKUi L eybGmb evbÆvi M wdDg üW N pH wgUvi 3. ˆKvb MÅvmwU `vnÅ bq? K CH4 L O2 M H2 N C3H8 4. cj-eywã eÅvGjG´Öi 5 gm ivBWvi eÅenvi KGi eÅvGj´ÖwUi myßZg cwigvGci ÞgZv KZ chƯ¦? K 0.1g L 0.005g M 0.0001g N 0.5g 5. 2q KÞcG^ BGjKUÇGbi ˆKŒwYK fi ˆeM KZ? K h L 2h M 7h 22 N 22h 7 6. Sc ‰i meÆGkl BGjKUÇb ˆh AiweUvGj cÉGek KGi Zvi RbÅ wbGPi ˆKvb ‘n’ ‰i gvbwU? K 3.0 L 4,0 M 3.2 N 4.1 7. hw` m ‰i gvb, -3 nq ZGe 1 ‰i gvb KZ? K 0 L 1 M 2 N 3 8. wbGPi ˆKvb iwkÄi kwÚ meGPGq Kg? K Microwave L IR M UV N X-ray 9. Hgl2 ‰i Rjxq `ËeGY KI `ËeY ˆhvM KiGj `ËveÅZvi Kxi…c cwieZÆb nq? K evGo L KGg M AcwieZÆbxq N Amxg wbGPi DóxcKwU cGov ‰es 10 I 11 bs cÉGk²i Dîi `vI: Avqb weKviK AatGÞGci eYÆ X4 K4[Fe(CN)6] jvjGP ev`vgx Y2+ K4[Fe(CN)6] mv`v AatGÞc 10. X4+ AvqbwU nj K Cu2+ L Ni2+ M Ca2+ N Zn2+ 11. Y2+ AvqbwUi ˆÞGò cÉGhvRÅ i. cÅvivGPŒÁ¼Kxq agÆ cÉ`kÆb KGi ii. d eÐGKi ˆgŒj iii. PZzÕ¦jKxq ˆhŒM MVb KGi wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 12. Al2(SO4)3 ‰i `ËveÅZv hw` "S" nq ZGe Al2(SO4)3 ‰i AvqwYK àYdGji gvb nGe? K S5 L 6S5 M 27S5 N 108S5 13. KÞ Zvcgvòvq ˆKvbwU Zij? K P4 L Br2 M I2 N 02 14. nvBGWÈvGRb e®¬Gbi KviGY i. H2O ii. H2S MÅvmxq iii. B^vbj cvwbGZ `ËeYxq wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 15. ˆKvbwUGZ `ywU mgGhvRx e®¬Gbi gaÅKvi ˆKvY ZzjbvgƒjK eo? K SO2 L H2O M NH3 N CH4 16. [Co(NH3)6] 3+ AvqbwU i. AÓ¡ZjKxq ii. sp3 d2 msKivqGbi gvaÅGg MwVZ nq iii. cÅvivPzÁ¼Kxq wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 17. 0.1 M HNO3 ‰i pH KZ? K 1 L 2 M 3 N 4 18. log K Xvj = 70 1 T DóxcGKi ˆjL ˆ^GK wbMÆZ mwKÌqb kwÚ nGjv K 13.4029J L 1340.29kJ M 1340.29J N 1320.6J 19. KClO3 nGZ O2 wbMÆgGb ˆKvbwU abvñK cÉfveK? K MnO2 L Pt M Al2O3 N V2O5 20. gvbyGli iGÚi pH KZ? K 6.5 L 7.0 M 7.4 N 8.0 wbGPi MÅvmxq DfgyLx wewKÌqvwU jÞ Ki ‰es 21 I 22 bs cÉGk²i Dîi `vI: A2(g) + B2 (g) HoooooooI 2AB(g); H = + Ve 21. wewKÌqvwUGZ Pvc evoGj wK nGe? K Drcv`Gbi Nbgvòv evoGe L Kp ‰i gvb evoGe M wewKÌqGKi Nbgvòv evoGe N PvGci ˆKvb cÉfve ˆbB 22. wewKÌqvwUGZ Zvcgvòv evoGj wK nGe? i. Kp ‰i gvb evoGe ii. mvgÅveÕ©vi cwieZÆb nGe bv iii. mvgÅveÕ©v Wvbw`GK mGi hvGe wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 23. wbGPi ˆKvbwU gGqøvivBRvi i…Gc wjcwÕ¡K I AvdUvi ˆkf ˆjvkGb eÅen†Z nq? K w™Ïmvij L wW-bÅvPvWÆ AÅvjGKvnj M ˆcÉvcvBwjb AÅvjGKvnj N Bw^wjb ™ÏvBKj 24. wfGbMvGi ^vGK K 6-10% CH3COOH L 6-10% C2H5OH M 6-10% CH3COCH3 N 6-10% CH2CHO 25. Lv`Å msiÞGYi eÅen†Z AÅvw´ŸAwÝGW´Ÿ ˆKvbwU? K EDTA L C6H12O6 M CH3COOH N BHT Dîi 1 M 2 K 3 L 4 M 5 K 6 M 7 N 8 K 9 L 10 K 11 M 12 N 13 L 14 N 15 K 16 K 17 K 18 M 19 K 20 M 21 N 22 L 23 K 24 K 25 N

6 cvGéix m†Rbkxj imvqb cÉ^g cò ‰Kv`k-«¼v`k ˆkÉwY mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² cƒYÆgvb: 50 [`ËÓ¡eÅ : Wvb cvGki msLÅv cÉGk²i cƒYÆgvb ævcK| cÉ`î DóxcKàGjv gGbvGhvM w`Gq co ‰es cÉ`î AvUwU m†Rbkxj cÉk² ˆ^GK ˆh ˆKvGbv cuvPwU cÉGk²i Dîi `vI|] 1. A, B ‰es C ‰i cvigvYweK msLÅv h^vKÌGg 11, 17 ‰es 29| K. j´£b ej Kx? 1 L. Cl ‰i BGjKUÇb AvmwÚ F AGcÞv ˆewk ˆKb? 2 M. BGjKUÇb webÅvmmn AB AYyi MVb eÅvLÅv KGiv| 3 N. AB ‰es CB ‰i gGaÅ ˆKvbwUi Mjbvâ Zzwg ˆewk eGj gGb KGiv? ˆZvgvi DîGii mvGcGÞ weGkÏlY KGiv| 4 2. C(s) + O2 CO(g); H = x kJ mol–1 CO(g) + O2(g) CO2(g); H = – y kJ mol–1 C(s) + O2(g) CO2(g); H = – z kJ mol–1 K. cÉfveK mnvqK Kx? 1 L. evdvi wKÌqv ejGZ Kx eySvq? 2 M. DóxcGKi z = 393 kJ nGj 1kg KveÆb `nGb KZ MÉvg AwÝGRb jvMGe? wnGme KGi ˆ`LvI| 3 N. DóxcGKi x + y = z DchyÚ ZG^Åi AvGjvGK ‰wU cÉgvY KGiv|4 3. Lv`Å msiÞGY aƒgvqgvb, wcKwjs I wewKiY ˆek RbwcÉq| K. ‰wWwUf Kx? 1 L. AwaKvsk wcÉRviGfwUfB AÁÏagÆx ˆKb? 2 M. Avg, gvQ I AvGcj msiÞGY DóxcGKi ˆKvb c«¬wZ eÅenviGhvMÅ ‰es ˆKb? 3 N. “DchyÆÚ c«¬wZmgƒn mywbw`ÆÓ¡” weGkÏlY Ki| 4 4. Z(19) = 1s2 2s2 3p6 3s2 3p6 3d0 4s1 Z(24) = 1s2 2s2 2p6 3s2 3p6 3d5 4s1 K. nvBGRbevGMÆi AwbøqZv bxwZ Kx? 1 L. cigvYyi ˆKvqv´Ÿvg gGWj gGZ cigvYyi 3q kwÚÕ¦Gi mÁ¿veÅ ˆgvU AiweUvj msLÅv MYbv KGiv| 2 M. DóxcGKi 1g ˆgŒjwUi cigvYyi meÆGkl BGjKUÇbwU 3d AiweUvGj cÉGek bv KGi ˆKvb wbqg gGZ 4s AiweUvGj cÉGek KGiGQ Zv mswkÏÓ¡ kwÚKÌg wbqg AbymvGi eÅvLÅv KGiv| 3 N. DóxcGKi 2q ˆgŒjwUi ˆejvq BGjKUÇb webÅvGmi ˆKvb ˆKvb wbqg Abym†Z nGqGQ ‰es ˆKvb wbqGgi eÅwZKÌg NGUGQ Zvi eÅvLÅvmn ‰ BGjKUÇb webÅvGmi h^v^ÆZv weGkÏlY KGiv| 4 5. Cu2+ + NH4OH (AwZwiÚ) A + H2O Zn2+ + NH4OH (AwZwiÚ) B + H2O K. Š`ZÅvKvi AYy Kx? 1 L. Na ˆK Þvi avZz ejv nq ˆKb? 2 M. DóxcGKi A ˆhŒMwU eYÆhyÚ eÅvLÅv KGiv| 3 N. “DóxcGK A ‰es B ‰i AvK‡wZ ‰es e®¬b ˆKvGY wf®²Zv iGqGQ” h^v^ÆZv weGkÏlY KGiv| 4 6. wbGPi cvò 2wU chÆGeÞY Ki 1bs cvò 0.05 M H – COOH Ka = 1.8 10–5 2bs cvò 0.1 M H – COONa K. jv-kvGZwjqvGii bxwZ Kx? 1 L. 2SO2(g) + O2(g) HooooooI 2SO3(g) wewKÌqvwUGZ PvGci cÉfve eÅvLÅv KGiv| 2 M. 1bs cvGòi `ËeGYi pH gvb MYbv KGiv| 3 N. 4.35 pH gvGbi ‰KwU evdvi `ËeY ŠZwi KiGZ 1 bs cvGòi 70 mL `ËeGYi mvG^ 2bs cvGòi KZ mL `ËeYGK ˆhvM Kivi cÉGqvRb coGe? 4 7. jÅveGiUwiGZ eÅen†Z wKQy cwiÓ•viK ˆKÑvGivdgÆ (CHCl3) KveÆb ˆUUÇvGKÑvivBW (CCl4) ˆebwRb (C6H6) K. ˆcvGmÆwjb ˆjGej Kx? 1 L. wcGcU eÅenvGii myweav Kx Kx? 2 M. DóxcGKi ivmvqwbK c`v^Æ eÅenvGii ˆKvGbv ÞwZKi w`K AvGQ wK?3 N. DóxcGKi ivmvqwbK c`v^ÆàGjvi msiÞY ‰es cwiGeGk AegyÚ Kivi ˆKŒkj weGkÏlY KGiv| 4 8. wgkÉGYi Dcv`vb c†^KxKiGYi mÁ·wKÆZ ‰KwU cÉwKÌqvi wPò jÞ KGiv| A B C M K. cwji eRÆb bxwZ Kx? 1 L. DóxcGKi cÉwKÌqvwUi bvg Kx? DóxcGKi cÉwKÌqvwUi gƒjZî½ ˆjGLv? 2 M. DcGii wPGò A, B ‰es C ‰i gGaÅ ˆKvbwU wgkÉY? ‰ wgkÉGY KqwU Dcv`vb AvGQ? Kx Kx eywSGq ˆjGLv| 3 N. mvevGbi jvB ˆ^GK w™Ïmvwib c†^K Kivi RbÅ Kx cÉwKÌqv AbymiY nq? eÅvLÅv KGiv| 4

gGWj ˆUÕ¡ 1 gGWj 1 wewmAvBwm KGjR, XvKv imvqb cÉ^g cò welq ˆKvW: 1 7 6 mgq 25 wgwbU eüwbeÆvPwb cÉk² cƒYÆgvb 25 [weGkl `ËÓ¡eÅ: mieivnK‡Z eüwbeÆvPwb AfxÞvi DîicGò cÉGk²i KÌwgK bÁ¼Gii wecixGZ cÉ`î eYÆmÁ¼wjZ e†îmgƒn nGZ mwVK/mGeÆvrK‡Ó¡ DîGii e†îwU () ej cGq´Ÿ Kjg «¼viv mÁ·ƒYÆ fivU KGiv| cÉwZwU cÉGk²i gvb 1|] 1. wbGPi ˆKvb AvqbwU iwOb ˆhŒM MVb KGi? K Be2+ L Sc3+ M Ni2+ N Zn2+ 2. Avg ˆKŒUvRvZKiGYi ˆKvb ˆhŒM eÅen†Z nq? K ‰mKiweK ‰wmW L mvBwUÇK ‰wmW M wfGbMvi N digvwjb 3. NH3 ‰i wkG͸vrcv`b MO ˆKvb wnmvGe eÅen†Z nq? K cÉfveK mnvqK L AvweÓ¡ cÉfveK M AGUvcÉfveK N cÉfveK wel 4. meÆvaywbK chÆvq mviwYGZ Sc ‰i AeÕ©vb ˆKvbwU? K chÆvq-4, MÉ‚c-1 L chÆvq-4, MÉ‚c-13 M chÆvq-4, MÉ‚c-3 N chÆvq-4, MÉ‚c-14 5. f-eÐK ˆgŒGji msLÅv KZwU? K 41 L 36 M 27 N 14 6. H cvigvYweK eYÆvjxi ˆKvb wmwiRwU AwZGeàbx AçGj we`Ågvb? K cÅvGøb L jvBGgb M evgvi N eËvGKU 7. 0.001 M NaOH `ËeGYi pH KZ? K 13 L 11 M 10 N 3 8. SF6 ˆhŒGM ˆKvb aiGbi msKiY we`Ågvb? K Sp3 d2 L Sp3 d M Spd3 N Sp2 d 9. ˆKvbwU mÁ¿e? K 3f L 3d M 2d N 1p 10. eyÅGiGUi cici `yB `vGMi cv^ÆKÅ KZ wgwj? K 1.0 L 0.1 M 0.01 N 0.001 11. AÓ¡K AÕ·Ó¡ ˆhŒM ˆKvbwU? i. H2O ii. BCl3 iii. NCl3 wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 12. ˆKvbwUi mvnvGhÅ DcÕ¦Gi AiweUvj msLÅv wbYÆq Kiv hvq? K 2(2l + 1) L 2l + 1 M l + 1 N (n + 1) 13. ˆKvbwUi AvKvi ˆQvU? K O L N M C N Li 14. mwKÌq fi ejGZ eySvq? i. AvswkK Pvc ii. AvYweK fi iii. ˆgvjvi Nbgvòv wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 15. wbGPi ˆKvb wewKÌqvwUi Kp ‰i ‰KK atm2 ? K H2 + I2 = 2HI L 2HO2 HoooooooooI N2O4 M 2NH3 HoooooooooI N3 + 3H2 N CH4 + H2O HoooooooooI CO + 3H2 16. ˆKvbwU wkLv cixÞvq ˆeàbx eYÆ ˆ`Lvq? K Na+ L Al3+ M Ni2+ N K+ 17. ˆKvb wbDwKÑqvmwU NMR mwKÌq? K 16 8 O L 12 6 C M 32 16S N 1 1H 18. wbGÁ²i ˆKvb ˆhŒGM gyÚGRvo BGjKUÇb msLÅv mGeÆvœP? K HCl L NH3 M H2O N H2S 19. 20C Zvcgvòvq 20.2g fGii ‰KwU mÁ·†Ú `ËeGY 10.2 g `Ëe AvGQ? `ËveÅZv KZ? K 1.02 L 50.50 M 102 N 202 20. UÅvjKg cvDWvGii gƒj Dcv`vb ˆKvbwU? K UÅvjK L ZnO M CaCO3 N myMw®¬ `ËeÅ 21. ˆKvbwU AwaK mgGhvRx? K LiCl L NaCl M KCl N CsCl 22. wbGÁ²i ˆKvbwU nvBGcv ‰wmW? K H3PO3 L H3PO2 M H3PO4 N HPO3 23. ˆKvb ˆhŒGM H e®¬b MwVZ nq? K HCl L H2S M CH3COOH N CHCl3 24. Mg(OH)2 ‰es H2O ‰i wgkÉYGK ejv nq? K mvmGcbkb L KjGqW M Bgvjkb N `ËeY 25. UqGjU wKÑbvGii cÉavb Dcv`vb ˆKvbwU? K NH4OH L NaOH M Na2CO3 N (NH4)2CO3 Dîi 1 M 2 L 3 K 4 M 5 M 6 L 7 L 8 K 9 L 10 L 11 * 12 L 13 K 14 M 15 M 16 N 17 N 18 K 19 M 20 K 21 K 22 L 23 M 24 K 25 L * 11. mwVK Dîi nGe (ii) hv AckGb ˆbB| gGWj ˆUÕ¡: wbeÆvPwb cixÞvi cÉk²cò

2 cvGéix m†Rbkxj imvqb cÉ^g cò ‰Kv`k-«¼v`k ˆkÉwY gGWj 2 mvfvi KÅv´ŸbGg´Ÿ cvewjK Õ•zj I KGjR, XvKv mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² cƒYÆgvb: 50 [`ËÓ¡eÅ : Wvb cvGki msLÅv cÉGk²i cƒYÆgvb ævcK| cÉ`î DóxcKàGjv gGbvGhvM w`Gq cGov ‰es cÉ`î AvUwU m†Rbkxj cÉk² ˆ^GK ˆh ˆKvGbv cuvPwU cÉGk²i Dîi `vI|] 1. DóxcKwU co I wbGPi cÉk²àGjvi Dîi `vI: NH3 `ËeY, HNO3, avZe- Na K. wcGcU Kx? 1 L. ivBWvi aË‚eK ejGZ Kx ˆevSvq? 2 M. DóxcGKi ivmvqwbK `ËeÅàGjv KxfvGe msiÞY Kiv hvq? 3 N. DóxcGKi ivmvqwbK `ËeÅàGjv AwaK eÅenvi cwiGek I gvbe mfÅZvi ügwKÕ¼i…c AvGjvPbv Ki| 4 2. DóxcKwU jÞ Ki I wbGPi cÉk²àGjvi Dîi `vI: n=1 n=2 n=3 n=4 h 10 Ea – Ea = h h wPò: H-cigvYy K. AiweUvj Kx? 1 L. 3d AiweUvj mÁ¿e nGjI 3f AiweUvj mÁ¿e bq ˆKb? 2 M. DóxcGK DGÍÏwLZ gGWjwU iv`viGdvGWÆi cigvYy gGWGji mxgve«¬ZvGK AwZKÌg KGi eÅvLÅv Ki| 3 N. DóxcGK DGÍÏwLZ avcv¯¦i mgƒGni gGaÅ ˆKvbwU AwaK kwÚ wewKiY KGi Zv weGkÏlY Ki| 4 3. DóxcKwU co I wbGPi cÉk²àGjvi Dîi `vI: ˆhŒM X Y Z AvYweK msGKZ CH4 NH3 H2O AvK‡wZ PZzÕ¦jKxq wòGKvYxq wcivwgWxq V-AvK‡wZ K. AvœQv`b cÉfve Kx? 1 L. KC ‰i gvb KLbI kƒbÅ ev Amxg nGZ cvGi bv ˆKb? 2 M. DóxcGKi ˆhŒMàGjvGZ ˆK±`Êxq cigvYyGZ we`Ågvb msKi AeÕ©v wbYÆq Ki| 3 N. X, Y ‰es Z ˆhŒGMi ‰i…c AvK‡wZ weGkÏlY Ki| 4 4. DóxcKwU jÞ Ki I wbGPi cÉk²àGjvi Dîi `vI: 25 mL 0.2 M CH3COOH (Pot: 1) 20 mL 0.2 M NaOH, (Pot: 2) Solution of (Pot: 1 + 2) K. nvBGWÈvGRb e®¬b Kx? 1 L. A + B = C + D wewKÌqvwUi RbÅ Kp I Kc ‰i gGaÅ mÁ·KÆ Õ©vcb Ki? 2 M. 2q cvGòi pH MYbv Ki| (Ka = 1.8 10–5 ) 3 N. 3q cvGòi wgkÉY `yB fvM KGi `ywU cvGò ˆbqv nj I ‰KwU cvGò mvgvbÅ ‰wmW AbÅwUGZ mvgvbÅ Þvi ˆhvM KiGj pH ‰i ˆKgb cwieZÆb nGe? KviY weGkÏlY Ki| 4 5. DóxcKwU jÞ Ki I wbGPi cÉk²àGjvi Dîi `vI: X gvLb Y (1% cvwbhyÚ Dcv`vb) K. ˆÕ¡wijvBGRkb Kx? 1 L. AÅvw´Ÿ AwÝGW´Ÿ ejGZ Kx eyS? 2 M. DóxcGKi ˆkGlvÚ Y Dcv`vbwU AGbKw`b chƯ¦ KÞZvcgvòvq ˆiGL ˆ`qv hvq ˆKb KviY eÅvLÅv Ki| 3 N. DóxcGKi X Dcv`vbwU nGZ 2q Dcv`vbwU ŠZwiGZ PvwbÆs LyeB Myi‚Z½cƒYÆ f„wgKv cvjb KGi DwÚwUi mZÅZv hvPvB Ki| 4 6. DóxcKwU co I wbGPi cÉk²àGjvi Dîi `vI: N2(g) + 3H2(g) = 2NH3(g) wewKÌqvi ˆÞGò 60C ‰es 95C Zvcgvòvq ˆeM aË‚eGKi gvb h^vKÌGg 2.35 10–6 ‰es 4.75 10–6 s –1 K. evdvi `ËeY Kx? 1 L. HClO4 I H2SO4 ‰i gGaÅ ˆKvbwU AwaK ZxeË ‰wmW ‰es ˆKb? 2 M. wewKÌqvwUi mwKÌqb kwÚi gvb MYbv Ki| 3 N. DóxcGKi wewKÌqvwUGZ mvgÅveÕ©vq PvGci cÉfve AvGQ wKbv AvGjvPbv Ki| 4 7. DóxcKwU jÞ Ki I wbGPi cÉk²àGjvi Dîi `vI: 2000 1 2 3 4 5 6 7 8 cvigvYweK msLÅv 9 10 11 12 1500 1000 500 0 A B C D E F G H I J K L K. mw®²Gek msLÅv Kx? 1 L. dvhvGbi bxwZ ejGZ Kx eyS? 2 M. DóxcGKi H-ˆgŒGji 2q BGjKUÇb AvmwÚi gvb abvñK eÅvLÅv Ki| 3 N. DóxcGKi cÉ`wkÆZ wbGPi ˆgŒjàGjvi AvqwbKiY kwÚi gvb eÅvLÅv Ki| D > E I G > H 4 8. DóxcKwU co I wbGPi cÉk²àGjvi Dîi `vI| ‰KwU wbw`ÆÓ¡ Zvcgvòvq BaCO3 ‰i `ËveÅZv àYdj 5.5 10–10 mol2 L–2 . `ywU cvGò mg AvqZGbi (i) 1 10–4 M Na2CO3 `ËeY I (ii) 0.1 M BaCl2 `ËeY ˆbIqv nj| K. RxgÅvb cÉfve Kx? 1 L. Cr ‰i BGjKUÇb webÅvm mvaviY wbqg AbymiY KGi bv ˆKb? 2 M. DóxcGK DwÍÏwLZ WvUvi mvnvGhÅ BaCl2 `ËeGY BaCO3 ‰i `ËveÅZv wbYÆq Ki| 3 N. DóxcGKi DwÍÏwLZ `ËeY (i) ‰es `ËeY –(ii) ciÕ·Gii mvG^ ˆhvM Kiv nGj wgwkÉZ `ËeGY BaCO3 ‰i AatGÞc coGe wK bv? MvwYwZKfvGe weGkÏlY Ki| 4

gGWj ˆUÕ¡ 3 gGWj 3 XvKv Bgwcwiqvj KGjR, XvKv imvqb cÉ^g cò welq ˆKvW: 1 7 6 mgq 25 wgwbU eüwbeÆvPwb cÉk² cƒYÆgvb 25 [weGkl `ËÓ¡eÅ: mieivnK‡Z eüwbeÆvPwb AfxÞvi DîicGò cÉGk²i KÌwgK bÁ¼Gii wecixGZ cÉ`î eYÆmÁ¼wjZ e†îmgƒn nGZ mwVK/mGeÆvrK‡Ó¡ DîGii e†îwU () ej cGq´Ÿ Kjg «¼viv mÁ·ƒYÆ fivU KGiv| cÉwZwU cÉGk²i gvb 1|] 1. d-eÐGKi cÉ^g ˆgŒj ˆKvbwU? K V L Cr M Mn N Sc 2. 0.01 M NaOH `ËeGYi pH KZ? K 1 L 2 M 12 N 13 3. XeF4 ˆhŒGM gyÚ ˆRvo BGjKUÇGbi msLÅv KqwU? K 1 wU L 2 wU M 3 wU N 4 wU 4. wbGÁ²i ˆKvb AvqwbK ˆhŒGM meGPGq ˆewk ˆcvjvqb NGU? K LiCl L BeCl2 M NaCl N MgCl2 5. C2H4 ˆhŒGM ˆKvb aiGbi msKiY NGUGQ? K dsp2 L sp2 M sp N sp3 6. ˆnevi em c«¬wZGZ NH3 Drcv`Gb ˆKvbwU cÉfveK mnvqK wnmvGe eÅen†Z nq? K Mo L Fe M Ni N Cr 7. wbGÁ²i ˆKvb AvqbwUi «¼viv MwVZ ˆhŒM iwOb nGe? K Ca2+ L Na+ M Co3+ N Zn2+ 8. ˆKvbwU ˆmGK´£vix Õ¡Åv´£vWÆ c`v^Æ? K Na2CO3 L K2Cr2O7 M H2C2O4 N KMnO4 9. wKÑwbs wgKøvi nGjv K K2Cr2O7 I HCl ‰i `ËeY L K2Cr2O7 I H2SO4 ‰i `ËeY M KMnO4 I HCl ‰i `ËeY N KMnO4 I H2SO4 ‰i `ËeY wbGPi DóxcKwU co ‰es 10 I 11 bs cÉGk²i Dîi `vI : ‰KRb wkÞv^Æx jÅveGiUixGZ KvR Kivi mgq Mvp H2SO4 Zvi nvGZ cGo ˆMj| jÅve wkÞK Zvi nvGZ 5% gvòv “X” `ËeY w`Gq KGqKevi ayGq w`Gjb ‰es cieZÆxGZ WvÚvGii KvGQ cvVvGjb| 10. DóxcGKi “X” `ËeYwU wQj K NaOH L NaHCO3 M (NH4)2CO3 N Na2CO3 11. ‰wmGWi cwieGZÆ hw` Þvi `ËeY nvGZ coZ ZGe jÅve wkÞK ˆKvbwU eÅenvi KiGZb? K H3BO3 L AgCl M H3PO4 N wfGbMvi `ËeY 12. ‰KwU ns AiweUvGj KZ msLÅK ˆbvW (node) ^vKGZ cvGi? K n msLÅK L (n + 1) msLÅK M 2n2 msLÅK N (n 1) msLÅK 13. cÉavb ˆKvqv´Ÿvg msLÅv n = 3 ‰i ˆÞGò i. 3 f AiweUvj mÁ¿e ii. m = 2, 1, 0, + 1, + 2 iii. l = 0, 1, 2 wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 14. ˆccvi ˆKÌvgvGUvMÉvwdi ˆÞGò Rf ‰i gvb ˆKvbwU mÁ¿e? K 3 L 2 M 1.5 N 0.15 15. A2B3 ‰i `ËveÅZv ‘s’ nGj `ËveÅZv àYdj KZ nGe? K 108 s5 L 27 s3 M 16 s4 N 8 s3 16. cvKÕ©jxi cvPK iGmi pH = 4.74 nGj H+ AvqZGbi Nbgvòv KZ? K 1.4 M L 0.398 M M 0.0398 M N 0.000018 M 17. Al2O3 ‰i AÁÏZ½ KZ? K 2 L 3 M 5 N 6 18. NaOH ‰i mvG^ wbGPi ˆKvb ‰wmWwUi cÉkgb Zvc meÆvwaK? K HNO3 L HF M HCl N H2SO4 19. A2(g) + 3B2(g) HoooooooooI 2AB(g) , H = + ve i. wewKÌqvwU Zvcnvix ii. mvgÅaË‚eK Kp I Kc ‰i gvb mgvb iii. mvgÅveÕ©vi Dci PvGci ˆKvb cÉfve ˆbB wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 20. mvgÅvsK Kp ‰i Dci Zvcgvòvi cÉfve mÁ·wKÆZ ˆjLwPGò i. ii. iii. wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 21. C(s) + O2 (g) CO2 (g), H = 393.5 kJ mol1 i. ‰wU KveÆGbi `nb wewKÌqv ii. CO2 ‰i msMVb wewKÌqv iii. ‰wU ‰KwU Zvc Drcv`x wewKÌqv wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 22. ˆgGn`xi is ‰i KviY ˆKvb imvqwbK `ËeÅ? K jÅvGbvwjb L jÅvGmvb M AwjK ‰wmW N DB´Ÿvj MÉxb 23. gvsm ˆKŒUvRvZ KiGZ eÅen†Z nq i. 2% Lv`Å `ËeY ii. 10% Lv`Å jeY iii. 2% wPwbi `ËeY wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 24. weGbMvi cÉÕ§wZGZ eÅvKGUwiqvi e†w«¬ mnvqK wnmvGe eÅen†Z nq i. (NH4)2SO4 ii. (NH4)2CO3 iii. (NH4)3PO4 wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 25. wjcwÕ¡GKi gƒj Dcv`vb ˆKvbwU? K ˆgvg L LwbR ˆZj M iéK c`v^Æ N ˆfGmwjb Dîi 1 N 2 M 3 L 4 L 5 L 6 K 7 M 8 N 9 L 10 L 11 K 12 N 13 L 14 N 15 K 16 N 17 N 18 L 19 N 20 K 21 N 22 L 23 L 24 L 25 K 1 T logKp 1 T logKp 1 T logKp

4 cvGéix m†Rbkxj imvqb cÉ^g cò ‰Kv`k-«¼v`k ˆkÉwY gGWj 4 we‰‰d kvnxb KGjR, cvnvoKvçbcyi, UvãvBj mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² cƒYÆgvb: 50 [`ËÓ¡eÅ : Wvb cvGki msLÅv cÉGk²i cƒYÆgvb ævcK| cÉ`î DóxcKàGjv gGbvGhvM w`Gq cGov ‰es cÉ`î AvUwU m†Rbkxj cÉk² ˆ^GK ˆh ˆKvGbv cuvPwU cÉGk²i Dîi `vI|] 1. K. AvDdevD bxwZwU wjL| 1 L. Zn avZzGK AeÕ©v¯¦i ˆgŒj ejv nq ˆKb? 2 M. A I B cvGòi wgwkÉZ `ËeGYi pH wbYÆq Ki| 3 N. wgkÉGY mvgvbÅ ‰wmW ev Þvi ˆhvM KiGj pH ‰i wK cwieZÆb NGU? eÅvLÅv Ki| 4 2. K. wcÉRviGfwUfm Kx? 1 L. 3d I 4p AiweUvGji gGaÅ ˆKvbwUGZ BGjKUÇb AvGM cÉGek KiGe? eÅvLÅv Ki| 2 M. DóxcGKi AvGjvGK cÉGqvRbxq h¯¨cvwZ I ivmvqwbK `ËeÅ eÅenvi KGi 300mL Na2CO3 `ËeY KxfvGe cÉÕ§Z KiGe? eYÆbv Ki| 3 N. DóxcGKi (ii) `ËeYGK mÁ·ƒYÆ cÉkwgZ KiGZ ˆZvgvi meUzKz `ËeY cÉGqvRb nGe Kx? MvwYwZKfvGe weGkÏlY Ki| 4 3. X = 1s2 2s2 2p2 Y = 1s2 2s2 2p3 Z = 1s2 2s2 2p4 K. evdvi `ËeY Kx? 1 L. AiweU I AiweUvGji gGaÅ cv^ÆKÅ wjL| 2 M. X2H2 ˆhŒGMi msKiY eÅvLÅv Ki| 3 N. Y I Z ‰i nvBWÈvBW ˆhŒM `ywUi msKiY ‰KB nIqv mGî½I e®¬b wf®² ˆKb? mwPò eÅvLÅv Ki| 4 4. A I B ˆgŒGji meÆGkl ˆKvqv´Ÿvg msLÅvi ˆmU wbÁ²i…c ˆKvqv´Ÿvg msLÅv ˆgŒGji bvg n l m s A 3 2 +2 1 2 B 3 2 2 1 2 K. Zwor FYvñKZv Kx? 1 L. H2SO4 I H3PO4 ‰wmW «¼Gqi gGaÅ ˆKvbwU ZxeË ‰wmW ‰es ˆKb eÅvLÅv Ki| 2 M. B ˆgŒGji meÆGkl BGjKUÇb ˆh kwÚÕ¦Gi hvq Zvi mGeÆvœP BGjKUÇb aviY ÞgZv l, m, s ‰i gvb eÅenvi KGi hvPvB Ki| 3 N. DóxcGKi A ˆgŒjwUi meÆGkl BGjKUÇb ˆh kwÚ Õ¦Gi iGqGQ ˆmB kwÚÕ¦Gi ˆKvb ˆKvb AiweUvj mÁ¿e Zv hvPvB Ki| 4 5. 18.5% N2O4 ‰i weGqvRGb NO2 Drc®² nq| hLb Zvcgvòv 298K ‰es Pvc 1 atm. K. eÐvwçs Kx? 1 L. Kc ‰i gvb kƒbÅ nq bv ˆKb? 2 M. DóxcGKi wewKÌqv AbymvGi Kp ‰i ivwkgvjv wbYÆq Ki| 3 N. Zvcgvòv ‰KB ˆiGL 0.5 atm PvGc DóxcGKi wewKÌqvi weGqvRb gvòv wbYÆq Kiv Kx mÁ¿e? hywÚmn weGkÏlY Ki| 4 6. ˆgŒj BGjKUÇb webÅvm X ns2 np5 Y nd6 (n+1)s2 Z nd10 (n + 1)s2 ‰LvGb, n = 3 K. jv-kvGZwjqvGii bxwZwU wjL| 1 L. mwKÌqb kwÚi mvG^ wewKÌqvi nvGii mÁ·KÆ eÅvLÅv Ki| 2 M. DóxcGK X, Y, Z ˆgŒjmgƒGni gGaÅ ˆKvbwU iwOb ˆhŒM MVb KiGe? eYÆbv Ki| 3 N. DóxcGK YX3 ‰es ZX2 ˆhŒM `ywUi gGaÅ ˆKvbwU cvwbGZ AwaK `ËeYxq Zvi KviY weGkÏlY Ki| 4 7. wfGbMvi AÅvGgvwbqv `ËeY KwÕ¡K ˆmvWv `ËeY A B C K. MVb Zvc wK? 1 L. Zn+2 Avqb kbvÚKiY cixÞv mgxKiYmn eYÆbv Ki| 2 M. Lv`Å msiÞGY A-‰i ài‚Z½ AvGjvPbv Ki| 3 N. ™Ïvm wKÑbvi ŠZwiGZ B I C ‰i gGaÅ ˆKvbwU AwaKZi DcGhvMx? weGkÏlY Ki| 4 8. Ray Ziã Š`NÆÅ (nm) A 10 B 97.24 C 850 D 258000 K. `ËveÅZv Kx? 1 L. wkLv cixÞvq Mvp HCl eÅenvi Kiv nq ˆKb? 2 M. C-iwkÄi KÁ·vâ I Ziã msLÅv wnmve Ki| 3 N. H-cigvYyi eYÆvwjGZ DGîwRZ BGjKUÇbwU KZZg kwÚÕ¦i ˆ^GK wbÁ² kwÚÕ¦Gi wdGi AvmGj B-‰i Abyi…c Ziã Š`NÆÅ cvIqv hvGe? MvwYwZKfvGe wnmve Ki| 4 80 mL 0.1M HCOOH Ka=1.8 104 cvò-A 40 mL 0.1M NaOH cvò-B 18 mL 0.2M HCl `ËeY (i) h¯¨cvwZ I ivmvqwbK `ËeÅ eyÅGiU, wcGcU, AvqZbwgwZK dÑvÕ•, dvGbj, Iqvk ˆevZj 21.65g Na2CO3 ˆgRvwis -wmwj´£vi (ii) `ËeY

gGWj ˆUÕ¡ 5 gGWj 5 ˆkiDW B´ŸvibÅvkbvj (cÉvt) Õ•zj ‰´£ KGjR, ˆkicyi, eàov imvqb cÉ^g cò welq ˆKvW: 1 7 6 mgq 25 wgwbU eüwbeÆvPwb cÉk² cƒYÆgvb 25 [weGkl `ËÓ¡eÅ: mieivnK‡Z eüwbeÆvPwb AfxÞvi DîicGò cÉGk²i KÌwgK bÁ¼Gii wecixGZ cÉ`î eYÆmÁ¼wjZ e†îmgƒn nGZ mwVK/mGeÆvrK‡Ó¡ DîGii e†îwU () ej cGq´Ÿ Kjg «¼viv mÁ·ƒYÆ fivU KGiv| cÉwZwU cÉGk²i gvb 1|] 1. ˆKvbwU cÉvBgvwi Õ¡Åv´£vWÆ c`v^Æ? K KMnO4 L H2SO4 M Na2S2O2 N K2Cr2O7 2. eyÅGiU cwiÓ•vi KiGZ wbGÁ²i ˆKvbwU eÅen†Z nq? K ˆKÌvwgK ‰wmW L mvevb M wWUviGR´Ÿ N ˆmvwWqvg evBKveÆGbU 3. 4s AiweUvGj KZwU ˆbvW ^vGK? K 3 wU L 2 wU M 1 wU N 4 wU 4. ˆgŒGji ˆhGKvGbv DckwÚ Õ¦Gi BGjKUÇb aviY ÞgZv wbYÆGqi mƒò ˆKvbwU? K 2n2 L 2l + 1 M 2(2l + 1) N 2(l + 1) 5. H2O AYyGZ AwÝGRGbi ˆKvb aiGbi msKivqb we`Ågvb? K sp3 L sp2 M sp N sp2 d 6. wbGPi ˆKvb ˆhŒMwU AwaK mgGhvRx? K MgCl2 L AlCl3 M CaCl2 N FeCl2 7. gvbe iGÚ ˆKvb evdvi we`Ågvb? K NaHCO3 + H2CO3 L CH3COONa + CH3COOH M Na2HPO4 + H2PO4 N NH4OH + NH4Cl 8. Zvcnvix wewKÌqvq Zvc cÉGhvM KiGj mvGgÅi AeÕ©vb K wcQGbi w`GK AMÉmi nq L mvgGbi w`GK AMÉmi nq M ˆKvGbv w`GKB mGi hvq bv N webÓ¡ nq 9. wfGbMvGii ivmvqwbK bvg Kx? K diwgK ‰wmW L ‰wmwUK ‰wmW M ˆmvwWqvg ‰wmGUU N wg^vbÅvj 10. ˆgGn`xi is ‰i KviY ˆh ivmvqwbK `ËeÅ K jÅvGbvwgb L jvGmvb M AwjK ‰wmW N DB´Ÿvi MÉxb 11. msiÞK wnmvGe wfGbMvi eÅenvGii myweav nGœQ i. ‰wU wewf®² Lv`Å`ËGeÅi Õ¼v` I cywÓ¡àY evwoGq ˆ`q ii. ‰wU Lv`Å`ËGeÅi eYÆ, cywÓ¡ I wfUvwgb AÞz®² ivGL iii. cPbkxj Lv`Å`ËeÅGK cPGbi nvZ ˆ^GK iÞv KGi wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 12. Mvfxi `yGa kZKiv KZfvM cvwb ^vGK? K 87.2% L 77.2% M 78.2% N 90.2% 13. A3(g) + 3B2(g) HoooooooooI 2AB3(g); H = ve; wewKÌqvwU AB3 ‰i Drcv`b e†w«¬ cvGe hw` i. Zvcgvòv nËvm Kiv nq ii. Pvc e†w«¬ Kiv nq iii. cvò ˆ^GK AB3 ˆK mwiGq ˆbIqv nq wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 14. cÉfveK ˆKvb wewKÌqvi i. wewKÌqK AYyi MwZkwÚ e†w«¬ KGi ii. mwKÌqY kwÚ nËvm KGi iii. wewKÌqK AYyGZ AwaGkvwaZ nq wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 15. 0.05 M H2SO4 `ËeGYi pH KZ? K 1 L 2 M 3 N 2.5 16. N2(g) + 2H2(g) HoooooooooI 2NH3(g) ; wewKÌqvi Kp I Kc ‰i mÁ·KÆ ˆKvbwU? K Kp = Kc (RT)3 L Kp = Kc (RT)2 M Kp = Kc (RT)2 N Kp = Kc (RT)1 wbGPi DóxcKwU co ‰es 17 I 18 bs cÉGk²i Dîi `vI : chÆvq ˆkÉwY 15 16 17 18 2q A M Q R 3q D E G T 17. EG4 ˆhŒGM gyÚ ˆRvo BGjKUÇb msLÅv K 4 L 3 M 1 N 2 18. DóxcK gGZ i. BGjKUÇb AvmwÚi KÌg Q < G ii. AvqwbKiY kwÚ e†w«¬i KÌg M < A < Q < R iii. DG3 ‰i e®¬bGKvb AGcÞv AG3 ‰i e®¬b ˆKvb ˆewk wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 19. BGjKUÇb AvmwÚi KÌg wbGPi ˆKvbwU? K F > Cl > Br > I L Cl > F > Br > I M I > Br > Cl > F N Br > Cl > F > I 20. wbGPi ˆKvbwU wkLv cixÞvq ˆKvGbv eYÆ ˆ`q bv? K Mg L Na M K N Ca 21. wiWevMÆ aË‚eK ‰i gvb wbGPi ˆKvbwU? K 109768 m1 L 109678 cm1 M 109678 em1 N 106789 m1 22. Na ‰i meÆewntÕ© BGjKUÇGbi RbÅ ˆKvb ˆKvqv´Ÿvg msLÅvàGjv mwVK? K n = 3, l = 0, m = 0, s = + 1 2 L n = 3, l = 3, m = 0, s = + 1 2 M n = 2, l = 2, m = 0, s = 1 2 N n = 3, l = 3, m = +3, s = + 1 2 23. UÇvwdK wmMbvGji jvj AvGjvi Ziã‹`NÆÅ 665 nm nGj kwÚ KZ? K 3.115 1018 J L 2.986 1019 J M 2.856 1016J N 3.245 1021 J 24. ‰KwU jeGYi 30C Zvcgvòvq `ËveÅZv 25 nGj 50 g mÁ·†Ú `ËeGY `ËGeÅi cwigvY KZ? K 10 g L 20 g M 12.5 g N 15 g 25. cj-eywã eÅvGjG´Öi ˆÞGò 10 mg IRGbi ivBWvi eÅenvi Kiv nGj ivBWvi aËeGKi gvb KZ? K 0.0001 L 0.001 M 0.0002 N 0.01 Dîi 1 N 2 K 3 K 4 M 5 K 6 L 7 K 8 L 9 L 10 L 11 N 12 K 13 N 14 K 15 K 16 M 17 * 18 N 19 L 20 K 21 L 22 K 23 L 24 K 25 M * 17. mwVK Dîi nGe 13; hv AckGb ˆbB|

6 cvGéix m†Rbkxj imvqb cÉ^g cò ‰Kv`k-«¼v`k ˆkÉwY gGWj 6 beveMé miKvwi KGjR, PuvcvBbeveMé mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² cƒYÆgvb: 50 [`ËÓ¡eÅ : Wvb cvGki msLÅv cÉGk²i cƒYÆgvb ævcK| cÉ`î DóxcKàGjv gGbvGhvM w`Gq cGov ‰es cÉ`î AvUwU m†Rbkxj cÉk² ˆ^GK ˆh ˆKvGbv cuvPwU cÉGk²i Dîi `vI|] 1. A, B ‰es C wZbwU ˆgŒj| ‰G`i ˆcÉvwUb msLÅv h^vKÌGg 6, 8 ‰es 14| K. AeÕ©v¯¦i ˆgŒj Kx? 1 L. AÅvGgvwbqvi e®¬b ˆKvb 107 ˆKb? 2 M. AH4 ‰i MVb AvGjvPbv Ki| 3 N. mvaviY Zvcgvòvq AB2 MÅvmxq, wK¯§ CB2 KwVb DwÚwUi h^v^ÆZv cÉgvY Ki| 4 2. cvigvYweK msLÅv cÉZxK 13 A 17 B K. BGjKGUÇvGbGMwUwfwU Kx? 1 L. ZnO DfagÆx AÝvBW ˆKb? 2 M. AB3 ˆhŒMwU ŠewkÓ¡Å mƒGò mgGhvRx eÅvLÅv Ki| 3 N. SiB4 GhŒMwU Av`ËÆweGkÏwlZ nq wKbv KviYmn weGkÏlY Ki| 4 3. K. BGjKUÇb AvmwÚ Kx? 1 L. wmMgv e®¬Gbi ˆPGq cvB e®¬b `yeÆj ˆKb? 2 M. DóxcGKi X, Y, Z ˆgŒGji wZbwU ŠewkÓ¡Å DGÍÏL Ki| 3 N. DóxcGK DGÍÏwLZ ˆgŒjàGjvi AvqwbKiY wefGei cwieZÆGbi KviY weGkÏlY Ki| 4 4. wbw`ÆÓ¡ Zvcgvòvq 1L cvGò 0.326 mol N2 ‰es 0.439 mol H2 ˆK D Kivq mvgÅveÕ©vq wgkÉGYi ˆgvU ˆgvj msLÅv cvIqv hvq 0.657 mol| K. MÉxb imvqb Kx? 1 L. AGUv cÉfveb cÉwKÌqv eÅvLÅv Ki| 2 M. DóxcGKi AvGjvGK wewKÌqvi KP wbYÆGqi ivwkgvjv Drcv`b Ki| 3 N. DóxcGK DGÍÏwLZ Z^Å nGZ KC ‰i gvb wbYÆq Ki| 4 5. ‰KwU cvGò 1.5 M NH4OH AvGQ| ‰i Kb = 1.8 105 mol/L K. pH Kx? 1 L. cvwbi AvqwbK àYdj ejGZ Kx eyS? 2 M. DóxcGK DGÍÏwLZ `ËeGYi pH wbYÆq Ki| 3 N. `ËeGYi AvqZb 1 L nGj KZ MÉvg NH4Cl ˆhvM KiGj wgkÉGYi pH = 9.5 nGe| 4 6. ‰KwU wewKÌqvi Zvcgvòv 27 C ˆ^GK 37 C ‰ e†w«¬ KiGj wewKÌqvi nvi w«¼àY nq| K. mwKÌqY kwÚ Kx? 1 L. jv-kvGUwjqvi bxwZ eÅvLÅv Ki | 2 M. DóxcGKi AvGjvGK AÅviGnwbqvm mgxKiY cÉwZcv`b Ki| 3 N. DóxcGKi Z^Å nGZ mwKÌhY kwÚ wbYÆq Ki| 4 7. CH3COOH NaCl (A) (B) K. Lv`Å wbivcîv Kx? 1 L. ˆÕ¡wijvBGRkb ˆKb Kiv nq? 2 M. B ˆhŒM «¼viv Lv`Å msiÞY AvGjvPbv Ki| 3 N. A ˆhŒM ‰KwU Dîg wcÉRviGfwUf hywÚ «¼viv cÉgvY Ki| 4 8. Fresh Milk Centrifuse Cream Charning Butter 120C X K. ™Ïvm KÑxbvi Kx? 1 L. cviwdDg Drcv`Gb evÓ·cvZb cÉwKÌqvi eÅvLÅv `vI| 2 M. DóxcK nGZ X ˆhŒGMi Drcv`b eYÆbv Ki| 3 N. DóxcGKi DGÍÏwLZ dGji KÅvwbs avcmgƒn AvGjvPbv Ki| 4 MÉ‚cwfwîK cwieZÆb AvqwbKiY wefe

gGWj ˆUÕ¡ 7 gGWj 7 Šmq`cyi miKvwi KvwiMix KGjR, bxjdvgvix imvqb cÉ^g cò welq ˆKvW: 1 7 6 mgq 25 wgwbU eüwbeÆvPwb cÉk² cƒYÆgvb 25 [weGkl `ËÓ¡eÅ: mieivnK‡Z eüwbeÆvPwb AfxÞvi DîicGò cÉGk²i KÌwgK bÁ¼Gii wecixGZ cÉ`î eYÆmÁ¼wjZ e†îmgƒn nGZ mwVK/mGeÆvrK‡Ó¡ DîGii e†îwU () ej cGq´Ÿ Kjg «¼viv mÁ·ƒYÆ fivU KGiv| cÉwZwU cÉGk²i gvb 1|] 1. wbGPi ˆKvbwU AeÕ©v¯¦i ˆgŒGji K Sc2+ L Zn2+ M Cu+ N As+ 2. cÉ`î AwaKÌgY «¼viv MwVZ nq i. -e®¬b ii. -e®¬b iii. ˆKvb e®¬b MwVZ nq bv wbGPi ˆKvbwU mwVK? K i L ii M iii N i, ii I iii 3. BF3 (X ˆhŒM) + F BF4 (Y GhŒM) X I Y ˆhŒGM msKiY I e®¬b ˆKvGYi gvb ˆKvbwU mwVK? K sp3 , 120 I sp2 , 109.5 L sp2 , 120 I sp3 , 120 M sp2 , 120 I sp3 , 109.5 N sp3 , 120 I sp3 , 109.5 4. wbGPi ˆKvbwU ˆgUv dmdwiK ‰wmW K HPO4 L HPO3 M H3PO4 N H3PO3 5. COCl2 GhŒGM ˆK±`Êxq cigvYy Kx msKwiZ? K sp2 L sp3 M sp2 d N sp 6. 4-wWwRU eÅvGjG´Öi mƒßZv KZ? K 0.01 L 0.001 M 0.0001 N 0.00001 7. H2S ‰i weK͸ ˆKvbwU K AÅvwmUÅvgvBW L ^vGqv AÅvwmUÅvgvBW M B^vbÅvgvBW N ^vGqvwbj ˆKÑvivBW 8. cixÞvMvGi eÅen†Z mvaviY eyGiU «¼viv meÆ wbÁ² KZ AvqZb cwigvc Kiv mÁ¿e? K 10 mL L 0.1 cm3 M 0.1 dm3 N 0.01 mL 9. AvwRgy^vj ˆKvqv´Ÿvg msLÅv Kx cÉKvk KGi? K w`K L NbZ½ M AvKvi N AvK‡wZ 10. nvBGWÈvGRb cigvYyi ˆKvb BGjKUÇGbi RbÅ ˆdvUb ˆkvlY KiGZ cvGi wK¯§ wewKiY KiGZ cvGi bv K 3s L 3p M 2p N 1s 11. dzW ˆjKvi ‰K aiGbi K msiÞK L ‰wbU AwÝGW´Ÿ M eÅvKwUwiqv I QòvK DfqB bvkK N KÅvb I LvG`Åi gvGaÅ weGf` m†wÓ¡Kvix ivmvqwbK 12. gGqvøvivBRvi wnmvGe ˆjvkb I wKÌGg ˆKvb ivmvqwbK Dcv`vbwU eÅenvi nq K wfGbMvi L ˆevivÝ M 1, 2, 3-UÇvBnvBGWÈvwÝ ˆcÉvGcb N mviweUvj 13. ˆKvjGqW ‰i ŠewkÓ¡Å nGjv i. ‰KwU Amgmî½ wgkÉY ii. wU´£vj cÉfve ˆ`Lvq iii. wKÌÕ¡vjGqW `ËeY wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 14. HCl + NaOH NaCl + H2O H = 5734 kJ/ mol nGj, 1 mol HCl ‰i mvG^ 0.5 mol NaOH ‰i wewKÌqvq H ‰i gvb KZ nGe? K 57.34 kJ L 47.44 kJ M 68.34 kJ N 28.67 kJ 15. Zvc Drcv`x wewKÌqvq Zvcgvòv e†w«¬ KiGj wewKÌqvi ˆeM K e†w«¬ cvq L nËvm cvq M AcwiewZÆZ ^vGK N Drcv`b D«¼vqx nq 16. H2 + Cl2 AvGjv 2HCl ; wewKÌqvwUi ˆeM AvGjvi Dci wbfÆikxj nGj ‰i ˆeM aË‚eGKi ‰KK K mol L1 s 1 L s 2 M mol2 L2 s 1 N mol L1 DóxcKwU cGo wbGPi `ywU cÉGk²i Dîi `vI : 2 L AvqZGbi ‰KwU Ave«¬ cvGò N2O4 wbGq D Kiv nGj mvgvÅveÕ©vq 25% weGqvwRZ nq| MÅvm wgkÉGYi ˆgvU Pvc 1 atm [wewKÌqvwU, N2O4 (g) HoooooooooI 2NO2(g)] 17. mvgÅveÕ©vq NO2 ‰i AvswkK Pvc KZ nGe? K 0.5 atmn L 0.4 atm M 0.25 atm N 0.125 atm 18. DóxcGKi wewKÌqvwUi RbÅ ˆKvb mÁ·KÆwU mwVK? K Kp > Kc L Kp < Kc M Kp = Kc N Kp Kc 19. ˆKvbwU AwaK mgGhvRx K BaCl2 L SrCl2 M CaCl2 N MgCl2 20. ˆccvi ˆKÌvgvGUvMÉvdxi RbÅ cÉGhvRÅ i. AwaGkvlY aGgÆi Dci wfwî KGi ii. KvMR wÕ©i `kv iii. KvMGRi Av`ËZv wÕ©i `kv wbGPi ˆKvbwU mwVK? K i L ii M iii N i, ii I iii 21. eyÅGiU wié KiGZ ˆKvbwU eÅenvi Dîg K ˆcUÇj L mvjwdDwiK ‰wmW M ˆKÌvwgK ‰wmW N B^vbj 22. weGRvo BGjKUÇb msLÅvi mwVK KÌg ˆKvbwU? K Mn2+ > Fe2+ > Cr3+ L Fe2+ > Cr3+ > Mn2+ M Cr3+ > Fe2+ > Mn2+ N Mn2+ > Cr3+ > Fe2+ 23. eyÅGiGU HCl ‰es KwbGKj dÑvGÕ• Na2CO3 wbGq UvBGUÇkb KiGj ˆkl we±`yGZ `ËeYwUi pH gvb KZ nGe? K 7.4 L 8.8 M 6.5 N 7 24. wbGÁ²i ˆKvbwU cÅvivgÅvMGbwUK agÆ ˆ`LvGZ cvGi bv? K [Cr(CN)6] 3 L [Co(H2O)6] 3+ M [Cr(CN)6] 3 N [Fe(H2O)6] 2+ 25. AÁÏxq FeSO4 `ËeGYi mvG^ cÉgvY KMnO4 `ËeGYi UvBGUÇkb NUvGj cÉ^Gg wewKÌqvi MwZ g¯©i ^vKGjI wKQyÞY ci MwZ e†w«¬ cvq, KviY K AweÓ¡ cÉfveb NGU L AGUv cÉfveb NGU M abvñK cÉfveb NGU N FYvñK cÉfve NGU Dîi 1 K 2 K 3 M 4 L 5 K 6 M 7 L 8 L 9 N 10 N 11 N 12 M 13 K 14 N 15 L 16 K 17 L 18 K 19 N 20 M 21 M 22 K 23 M 24 M 25 L x Overlaping

8 cvGéix m†Rbkxj imvqb cÉ^g cò ‰Kv`k-«¼v`k ˆkÉwY gGWj 8 Šmq`cyi miKvwi KvwiMix KGjR, bxjdvgvix mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² cƒYÆgvb: 50 [`ËÓ¡eÅ : Wvb cvGki msLÅv cÉGk²i cƒYÆgvb ævcK| cÉ`î DóxcKàGjv gGbvGhvM w`Gq cGov ‰es cÉ`î AvUwU m†Rbkxj cÉk² ˆ^GK ˆh ˆKvGbv cuvPwU cÉGk²i Dîi `vI|] 1. wbGPi DóxcKwU cGov ‰es cÉk²àGjvi Dîi `vI : ˆkÉwY chÆvq 1 15 16 17 1g A 2q J L M X 3q R Q K. PvjGKvGRb Kx? 1 L. DóxcGKi X ˆgŒjwU meÆvGcÞv Zwor FYvñK ˆgŒj ˆKb? eÅvLÅv Ki|2 M. L, M I X ˆgŒjàGjvi AvqbxKiY kwÚi cwieZÆb KviYmn eÅvLÅv Ki| 3 N. LA2 AvqbwUi RÅvwgwZK AvK‡wZ I e®¬b ˆKvY msKiGYi gvaÅGg eÅvLÅv Ki| 4 2. wbGPi DóxcKwU cGov ‰es cÉk²àGjvi Dîi `vI : 100 mL 0.01 M AgNO3 A Solution 60 mL 0.02 M KCl B Solution 20 mL 0.01 M HCl C Solution A B C ‰LvGb, Ksp(AgCl) = 1 104 mol2 L2 K. Cu2+ ‰i BGjKUÇb webÅvm wjL| 1 L. üG´£i wbqgwU wjL I eÅvLÅv Ki| 2 M. DóxcGKi A I B wgwkÉZ KiGj ‰i AatGÞc Drc®² nGe wK bv eÅvLÅv Ki| 3 N. DóxcGKi `ËeYàGjvi wgkÉGbi mvnvGhÅ cÉgvY Ki ˆh, mgAvqb cÉfvGe AgCl ‰i `ËveÅZv nËvm cvq 4 3. wbGPi DóxcKwU cGov ‰es cÉk²àGjvi Dîi `vI : e2 e1 1 2 3 4 K. jÅvwUm ‰b^vjwc Kx? 1 L. DóxcGKi e2 ‰i Õ©vbv¯¦wiZ ‰i KÞcG^ AveZÆGbi cÉK‡wZ eÅvLÅv Ki| 2 M. DóxcGKi e1 ‰i Õ©vbv¯¦iwU mÁ·®² KiGZ nGj BGjKUÇbwUGK KZ kwÚ ARÆb KiGZ nGe? 3 N. DóxcGKi ˆgŒjwUGZ hw` ‰KwU gvò BGjKUÇb ^vGK ZvnGjI cvigvYweK eYÆvjxGZ ‰KvwaK ˆiLvi AwÕ¦Z½ jÞ Kiv hvq ˆKb? 4 4. wbGPi DóxcKwU cGov ‰es cÉk²àGjvi Dîi `vI : 150C Zvcgvòvq I 4.38 105 Nm1 PvGc ‰KwU Ave«¬ cvGò 1.5 mol AB5 wbGq weGqvwRZ Kivq mvgÅveÕ©vq 0.5 mol AB3 I 0.5 mol B2 Drc®² nGjv| K. Amgmî½ cÉfveb Kx? 1 L. wewKÌqvi ˆeM aË‚eK ejGZ Kx eyS? 2 M. DóxcGKi wewKÌqvwUi Kc ‰i gvb wbYÆq Ki| 3 N. DóxcGKi wewKÌqvwU mvgÅveÕ©vq ^vKGj mvGgÅi Dci Zvcgvòv I PvGci cÉfve eÅvLÅv Ki| 4 5. wbGPi DóxcKwU cGov ‰es cÉk²àGjvi Dîi `vI : 100 mL 0.2 M CH3COOH `ËeY 40 mL 0.2 M NaOH `ËeY A B K. cÉgvY `nb Zvc Kx? 1 L. mwKÌq AYy Kx? wewKÌqvi ˆeGMi Dci mwKÌq AYyi cÉfve ˆjL| 2 M. DóxcGKi `ËeY `ywU wgwkÉZ KiGj wgkÉYwUi pH gvb wbYÆq Ki| 3 N. DóxcGKi `ËeY `ywUi wgkÉGY mvgvbÅ ‰wmW A^ev mvgvbÅ Þvi ˆhvM KiGj pH gvGbi wKi…c cwieZÆb NUGe eÅvLÅv Ki| 4 6. wbGPi DóxcKwU cGov ‰es cÉk²àGjvi Dîi `vI : iywU (1) gvsm (2) djgƒj (3) K. Lv`Å wbivcîv Kx? 1 L. ™Ïvm wKÑbvGi KwÕ¡K ˆmvWv eÅenvi Kiv nq bv ˆKb? 2 M. DóxcGKi 3bs cvGòi Lv`Ë ˆKŒUvRvZKiGYi c«¬wZ eYÆbv Ki| 3 N. DóxcGKi 1bs I 2bs Lv`Å `ËeÅ msiÞGY ‰KB aiGbi msiÞK eÅenvi Kiv mÁ¿e Kx? DÚ msiÞK wKfvGe Lv`Å msiÞY KGi? 4 7. wbGPi DóxcKwU cGov ‰es cÉk²àGjvi Dîi `vI : ‰KRb Qvò cixÞvMvGi cj-eywã eÅvGiG´Öi evg cvÍÏvq Na2CO3 fwZÆ IRb ˆevZj ˆiGL Wvb cvÍÏvq 10g, 5g, 2g, 500mg, 100mg, 50mg, 20mg fGii evULviv PvcvGbv nGjv| wbwÚi mƒPK KvUvwU kƒbÅ `vM eivei wÕ©i Kivi RbÅ 5 mg ivBWviwU exGgi ˆÕ•Gji Wvb w`GKi 3wU eo `vGMi ci 2wU ˆQvU `vM eivei ivLj| 0.1 M 250 mL Na2CO3 `ËeY cÉÕ§wZi RbÅ cjeywã eÅvGjG´Öi mvnvGhÅ AvqZwbK dÑvGÕ• 2.5g Na2CO3 wbGZ wMGq 2.6180 g ˆbIqv nGjv| K. ivBWvi aË‚eK Kx? 1 L. wgwjGgvjvi NaOH ‰i Nbgvòv ppm ‰ KZ nGe? 2 M. kƒbÅ ˆevZGji cÉ^g fi wnmve Ki| 3 N. wg^vBj AGié wbG`ÆkGKi mvnvGhÅ Na2CO3 ‰i cÉÕ§ZK‡Z 150 cm3 `ËeYGK mÁ·ƒYÆ cÉkgb KiGZ KZ Nbgvòvi 200cm3 HCl cÉGqvRb nGe| 4 8. wbGPi DóxcKwU cGov ‰es cÉk²àGjvi Dîi `vI : 2 1 0 1 2 +1 1 0 0 Radiation Magnatic field K. wRgÅvb cÉfve Kx? 1 L. cvZb I AvswkK cvZGbi gGaÅ cv^ÆKÅ ˆ`LvI| 2 M. DóxcK wPGòi mvnvGhÅ wKfvGe AiweUvGji aviYv cvIqv hvq, eÅvLÅv Ki| 3 N. DóxcK wPGò ˆh kwÚÕ¦i ˆ`LvGbv nGqGQ ˆmwUi ˆKvqv´Ÿvg msLÅvi mvnvGhÅ BGjKUÇb msLÅv wnmve Ki| 4

gGWj ˆUÕ¡ 9 gGWj 9 wmGjU miKvwi KGjR, wmGjU imvqb cÉ^g cò welq ˆKvW: 1 7 6 mgq 25 wgwbU eüwbeÆvPwb cÉk² cƒYÆgvb 25 [weGkl `ËÓ¡eÅ: mieivnK‡Z eüwbeÆvPwb AfxÞvi DîicGò cÉGk²i KÌwgK bÁ¼Gii wecixGZ cÉ`î eYÆmÁ¼wjZ e†îmgƒn nGZ mwVK/mGeÆvrK‡Ó¡ DîGii e†îwU () ej cGq´Ÿ Kjg «¼viv mÁ·ƒYÆ fivU KGiv| cÉwZwU cÉGk²i gvb 1|] 1. wbGPi ˆKvb wewKÌqvq Kp > Kc K H2 + I2 HoooooooooI 2HI(g) L PCl5 HoooooooooI PCl3(g) +Cl2 M 3H2 + N2 HoooooooooI 2NH3 N FeO + CO HoooooooooI Fe + CO2 2. ˆPvGL Þvi `ËeY coGj wbGPi ˆKvb `ËeYwU eÅenvi KiGZ nq? K 5% H3PO3 L 5% HF M 5% NaHCO3 N 5% H3BO3 3. wPn×wU cÉKvk KGi K `vnÅ c`v^Æ L ÞwZKviK c`^Æ M D«¼vqx c`v^Æ N RviK c`v^Æ 4. Da»ÆcvwZZ c`vG^Æi ˆÞGò cÉGhvRÅ i. Da»ÆcvwZZ c`v^ÆGK DrGÞc eGj ii. Šòa we±`yi Pvc evqyg´£jxq PvGci Kg iii. Šòa we±`yi Pvc evqyg´£jxq PvGci ˆPGq ˆewk wbGPi ˆKvbwU mwVK? K i I iii L i I ii M ii I iii N i, ii I iii 5. ˆKvb ˆKvb AiweUvGji AwaKÌgGbi dGj CO2 ˆhŒGM e®¬b MwVZ nq K sp2 , sp2 L sp2 , sp3 M sp, sp2 N sp, sp3 6. ˆKvb AiweUvjwU mÁ¿e K 4d L 3f M 1p N 2d DóxcKwU jÞ Ki ‰es 7, 8 I 9 bs cÉGk²i Dîi `vI : MÉ‚c chÆvq 2 13 3 X Y 4 Z Q 7. Q ‰i ˆkl BGjKUÇGbi ˆPŒÁ¼K ˆKvqv´Ÿvg msLÅvi gvb nGe i. +1 ii. 0 iii. 1 wbGPi ˆKvbwU mwVK? K i L ii M i I iii N i, ii I iii 8. DóxcGKi ˆgŒjàGjvi gGaÅ wbGPi ˆKvbwU mwKÌqZvi KÌg K X > Y > Z > Q L Z > Q > Y > X M Z > X > Q > Y N Z > Q > Y > X 9. DóxcGKi ˆgŒjàGjvi gGaÅ i. Z ‰i AvqwbKiY wefe Q ‰i ˆPGq ˆewk ii. Y ‰i ˆKÑvivBGWi Rjxq `ËeY AÁÏxq iii. Y ‰i AvqZGbi ˆcvjvivqb ÞgZv X ‰i AvqGbi ˆPGq ˆewk wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 10. Fe2(SO4)3 ‰i `ËveÅZv S nGj ‰wUi Ksp nGe K 27 S3 L 27 S5 M 108 S5 N 89 S5 11. cÉfveK cwieZÆb KGi K mwKÌqb kwÚ L mvgÅveÕ©v M wewKÌqvZvc N Afů¦ixY kwÚ 12. UÅvjKg cvDWvGii gƒj Dcv`vb nGœQ i. 3MgO . 4SiO2 . H2O ii. H2Mg3(SiO3)4 iii. Mg3.Si4O10(OH)2 wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 13. ‰KwU `ËeGYi nvBGWÈvwÝj AvqGbi Nbgvòv 105 mol/L nGj DÚ `ËeGY pH nGe K 5 L 14 M 9 N 10 14. wbGPi ˆKvb wbDwKÑqvmwU NMR mwKÌq K 16 8O L 31 15P M 2 1H N 12 6C 15. ˆgGnw`i ˆiW-eËvDb is cÉ`vbKvix jvGmvb ˆhŒGM wbGPi ˆKvb ˆKvb vhÆKix gƒjK we`Ågvb i. >C=O ii. OH iii. >C=C< wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 16. ‰wmGWi kwÚgvòv wbfÆi KGi i. ‰wmGWi weGqvRb aË‚eGKi Dci ii. ˆK±`Êxq ˆgŒGji RviY gvGbi Dci iii. `ËveGKi cÉK‡wZi Dci wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 17. ˆKvΣ wKÌGg jyGeËGKwUs ‰GR´Ÿ wnmvGe eÅen†Z nq K Zij cÅviwdb L ˆcÉvcvBj cÅvivGeb M w™Ïmvwib N ˆgvg 18. wbGÁ²i ˆKvb h¯¨ eÅenvi KGi AwaKZi mƒßfvGe ռ͸ AvqZb cwigvc Kiv mÁ¿e K ˆgRvwis wmwj´£vi L AvqZbwgwZK dÑvÕ• M eyGiU N KwbKÅvj dÑvÕ• 19. ˆKÌvwgK ‰wmGWi wgkÉY nGjv K K2Cr2O7 + jNy H2SO4 L Na2Cr2O7 + jNy H2SO4 M K2Cr2O7 + Mvp HCl N K2Cr2O7 + Mvp H2SO4 20. gvQ gvsmGK ˆKŒUvRvZKiGYi RbÅ KZ C Zvcgvòvq RxevYygyÚ Kiv nq K 220 C L 221 C M 50 C N 40 C 21. wbGPi ˆKvb ‰wmWwUGZ meGPGq Kg OH gƒjK we`Ågvb K H2SO4 L HClO4 M H2CO3 N H3PO3 22. Rj¯¦ eÕ§ ev ÞqKvix c`v^Æ wbGq KvR KiGj wbPi ˆKvb ™ÏvfmwU eÅenvi KiGZ nGe K jÅvGUÝ L wRGUÝ M wbIwcÉb N mywZi 23. K ‰i 12 bs BGjKUÇGbi ˆKvqv´Ÿvg msLÅv nGe K n = 3, l = 1, m = 0, s = + 1 2 L n = 3, l = 0, m = 0, s = + 1 2 M n = 4, l = 2, m = +1, s = 1 2 N n = 2, l = 1, m = 1, s = + 1 2 24. wbGÁ²i ˆKvb AvqbwU AGUv cÉfveK wnmvGe KvR KGi K Mg+2 L Cu2+ M Mn2+ N Na+ 25. ˆcqviv ˆKŒUvRvZ KiGY wbGPi ˆKvb wcÉRviGfwUf eÅenvi Kiv nq K mvBwUÇK ‰wmW L ˆebGRvwqK ‰wmW M ˆmvwWqvg ˆebGRvwqU N ˆmvwWqvg miGevGiU Dîi 1 L 2 N 3 K 4 L 5 * 6 K 7 * 8 M 9 L 10 M 11 K 12 N 13 M 14 L 15 N 16 N 17 K 18 M 19 K 20 * 21 L 22 L 23 L 24 M 25 K * 5. mwVK Dîi nGe sp2 , sp2 hv AckGb ˆbB| 7. mwVK Dîi nGe (iii); hv AckGb ˆbB| 20. mwVK Dîi nGe 121C; hv AckGb ˆbB|

10 cvGéix m†Rbkxj imvqb cÉ^g cò ‰Kv`k-«¼v`k ˆkÉwY gGWj 10 miKvwi ‰g.wm (ˆgvnvÁÃ` ˆPŒayix) ‰KvGWgx, ˆMvjvcMé, wmGjU mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² cƒYÆgvb: 50 [`ËÓ¡eÅ : Wvb cvGki msLÅv cÉGk²i cƒYÆgvb ævcK| cÉ`î DóxcKàGjv gGbvGhvM w`Gq cGov ‰es cÉ`î AvUwU m†Rbkxj cÉk² ˆ^GK ˆh ˆKvGbv cuvPwU cÉGk²i Dîi `vI|] 1. cvò A Mvp H2SO4 cvò B Mvp NaOH cvò C Mvp LiAIH4 K. mvmGcbkb Kx? 1 L. Cd-AeÕ©v¯¦i avZz bq ˆKb? 2 M. DóxcGKi A, B I C cvGòi Dcv`vbmgƒnGK KxfvGe msiÞY KiGe wjL| 3 N. B I C cvGòi ˆhŒM«¼Gqi AcwiwgZ eÅenvi gvbeÕ¼vÕ©Å I cwiGeGki RbÅ ügwK Õ¼i…c wK-bv weGkÏlY Ki| 4 2. cvò A = AgCl, Ksp = 1.5 1010 mol2 L2 `ËeY cvò B = 100 mL, 0.02 M KCl `ËeY cvò C = 100 mL, 0.01 M AgNO3 `ËeY K. mwKÌqb kwÚ Kx? 1 L. pH ˆÕ•j 014 ‰i gGaÅ mxgve«¬ ˆKb? 2 M. DóxcGKi ‘A’ cvGòi AÁÏxq gƒjGKi mbvÚKvix cixÞv mgxKiYmn wjL| 3 N. cvò B I C ‰i `ËeY wgwkÉZ KiGj AatGÞc coGe wKbvMvwYwZKfvGe gƒjÅvqb Ki| 4 3. K L M K. MSDS Kx? 1 L. H2SO3 I HNO3 ‰i gGaÅ ˆKvbwU AwaK AÁÏxq ‰es ˆKb? 2 M. DóxcGKi L-ˆkGji (cwicƒYÆ) ˆKvqv´Ÿvg msLÅvi ˆmU ŠZwi Ki| 3 N. gGWjwU H cigvYyi ˆÞGò cÉGhvRÅ nGj BGjKUÇbwUi avcv¯¦Gii mgq Ziã Š`NÆÅ wbYÆq KGi wbMÆZ kwÚ MYbv Ki| 4 4. ˆgŒj ˆkÉwY chÆvq A 15 2q B 16 C 15 3q D 16 K. cÅvivgÅvMGbwUK ˆgŒj Kx? 1 L. Mvp H2SO4 ‰ cvwb XvjGZ ˆbB ˆKb? 2 M. DóxcGKi A I C ‰i nvBWÈvBGWi ÞviagÆxZv eÅvLÅv Ki| 3 N. A, B, C I D ‰i chÆvq mviwY wfwîK AvqwbKiY kwÚi cwieZÆb weGkÏlY Ki| 4 5. A, B I C wZbwU ˆgŒj hvG`i ewntÕ¦Gii BGjKUÇb webÅvm h^vKÌGg ns1 , ns2 ‰es ns2 np5 | ‰LvGb, n = 3| K. eÐvwçs Kx? 1 L. ‰Ug BGKvbwg ejGZ Kx eyS? 2 M. CC4 (DóxcGKi C)-‰ we`Ågvb msKixKiY eÅvLÅv Ki| 3 N. A I B ‰i w«¼-abvñK Avqb MVGbi mÁ¿veÅZv hvPvB Ki| 4 6. N2(g) + 3H2(g) HoooooooooI 2NH3(g), H = ve K. Rf Kx? 1 L. 3f AiweUvj AmÁ¿e ˆKb? 2 M. DóxcGKi wewKÌqvwUi Kp ‰i ivwkgvjv MYbv Ki| 3 N. DcGii wewKÌqv ˆ^GK mGeÆvœP Drcv` cvIqvi kZÆmgƒn weGkÏlY Ki| 4 7. C, S I CS2 ‰i `nb Zvc h^vKÌGg 394.55, 297.39 I 1109.17 kJ/mol K. cwji eRÆb bxwZ Kx? 1 L. kxZKvGj ˆKvΣKÌxg eÅenvi Kiv nq ˆKb? 2 M. DóxcGKi Zî½ ˆ^GK CS2 ‰i MVb Zvc wnGme Ki| 3 N. DcGii Zî½àGjv ˆnGmi mƒòGK mg^Æb KGi wK-bv MvwYwZKfvGe gƒjÅvqbKi 4 8. A = euvkGKvij B = cÉvK‡wZK wcÉRviGfwUf «¼viv msiwÞZ Lv`Å C = K‡wòg wcÉRviGfwUf «¼viv msiwÞZ Lv`Å K. fiwKÌqv mƒòwU wjL| 1 L. MgCl2 wkLv cixÞvq eYÆ m†wÓ¡ KGi bv ˆKb? 2 M. DóxcGKi A -‰i ˆKŒUvKiY cÉwKÌqv ˆjL| 3 N. B I C ‰i gGaÅ ˆKvbwU Õ¼vGÕ©Åi RbÅ AwaK wbivc` eÅvLÅv Ki| 4 C + 2S CO2 + SO2 CS2 + 3O2 O2 + 3O2

kxlÆÕ©vbxq KGjGRi cÉk²cò: wbeÆvPwb cixÞv 2019 1 KÅvGWU KGjGRi cÉk² I Dîi: wbeÆvPwb cixÞv 2019 1. wgRÆvcyi KÅvGWU KGjR, UvãvBj imvqb : cÉ^g cò welq ˆKvW : 1 7 6 mgq– 25 wgwbU eüwbeÆvPwb AfxÞv gvb– 25 1. wPwbi `ËeY «¼viv AvGgi ˆKŒUvRvZKiGY ˆh mvBwUÇK ‰wmW eÅen†Z nq K 35% L 25% M 2.5% N 0.25% 2. ˆKvbwU mÁ¿e? K 1s, 1p L 2p, 2d M 6p, 6s N 3d, 3f 3. Al2O3 ‰i ÞviKZ½ KZ? K 6 L 5 M 3 N 2 4. cÉvBgvwi Õ¡Åv´£vWÆ c`v^Æ ˆKvbwU? K AÝvwjK ‰wmW L nvBGWÈvGKÑvwiK ‰wmW M mvjwdDwiK ‰wmW N bvBwUÇK ‰wmW 5. Ni2+ (28) ‰i 3d AiweUvGj Ahy™Â BGjKUÇb msLÅv KZwU? K 1 L 2 M 3 N 6 6. NH4Cl -‰ wK wK cÉKvi e®¬b we`Ågvb? i. AvqwbK e®¬b ii. mgGhvRx e®¬b iii. mw®²Gek e®¬b wbGPi ˆKvbwU mwVK? K i I iii L ii I iii M i I ii N i, ii I iii 7. `†kÅgvb AvGjvi eÅvwµ¦ ˆKvbwU? K 100380 nm L 180 280 nm M 250 400 nm N 350 780 nm 8. wbGPi ˆKvb ˆgŒjwUi AvqbxKiY wefe meÆvwaK? K Mg L P M Ar N Cl 9. ˆcÉvUb msLÅv 4 wewkÓ¡ ˆgŒjwU ˆh ˆgŒGji mvG^ ‰KB aiGbi ivmvqwbK ŠewkÓ¡Å ˆ`Lvq Zvi ˆcÉvUb msLÅv K 5 L 13 M 20 N 30 10. ˆKvbwU kwÚkvjx ZworweGkÏlÅ? K HNO3 L NH4OH M CH3COOH N H2O 11. ˆKvbwU Zvcgvòvi Dci wbfÆikxj bq? K ppm L ˆgvjvwjwU M kZKiv cwigvGYi `ËeY N ˆgvjvwiwU 12. wbGPi ˆKvbwU AÓ¡K bxwZ AYymiY KGi bv? K BCl3 L CCl4 M H2O N CH3Cl 13. wbGPi ˆKvbwU meÆvwaK mgGhvRx ŠewkÓ¡Å cÉ`kÆb KiGe? K CaCl2 L BeCl2 M MgCl2 N SrCl2 14. ˆKvbwUi cixÞvq NaOH eÅen†Z nq? i. Zn2+ ii. Al3+ iii. Ca2+ wbGPi ˆKvbwU mwVK? K i I iii L ii I iii M i I ii N i, ii I iii 15. ˆKvqv´Ÿvg msLÅv n = 3, = 2 «¼viv ˆKvb AiweUvj wbG`Æk KGi? K 3s L 3p M 3 N 3d 16. sp msKivqY NGU? K CO L C2H4 M C2H2 N BF3 17. 0.05 M H2SO4 ‰i pH KZ? K 0 L 1 M 2 N 3 18. wbGPi wewKÌqvq cÉfveK wel wnGmGe KvR KGi ˆKvbwU? 2SO2 + O2 2SO3 K Fe L Mo M As2O3 N Pt 19. ŠRe ˆhŒGMi KvhÆKix gƒjK mbvÚKiGY ˆKvb iwkÄwU eÅen†Z nq? K UV iwkÄ L X iwkÄ M Mvgv iwkÄ N IR iwkÄ wbGPi ˆhŒMwU jÞ KGiv ‰es 20 I 21 cÉk²mgƒGni Dîi `vI| [Cu(NH3)4]SO4 20. DcGii DGÍÏwLZ ˆhŒGM Cu ‰i RviY msLÅv KZ? K + 1 L + 2 M + 4 N + 6 21. DcGi DGÍÏwLZ GhŒGM Cu ‰i mw®²Gek msLÅv KZ? K 6 L 5 M 4 N 3 22. wkLv cixÞvq Ca2+ Avqb ˆKvb eYÆ ˆ`Lvq? K ˆmvbvwj njy` L BGUi gGZv jvj M bxjvf meyR N ˆeàwb 23. wbGPi ˆKvb ˆRvowU ‰GK AcGii AvBGmvGUvb? K 31 15 P, 32 16 S L 14 7 N, 16 8 O M 30 14 Si, 31 16 S N 35 17 Cl, 33 16 S 24. Al2 (SO4)3 ‰i Rjxq `ËeY nGjv K cÉkg L AÁÏxq M Þvixq N ÞviKxq 25. AvqZbwgwZK weGkÏlGY ˆKvbwU eÅen†Z nq bv? K AvqZbwgwZK dÑvÝ L eyÅGiU M ˆUÕ¡ wUDe N wcGcU Dîi 1 N 2 M 3 N 4 K 5 L 6 N 7 N 8 M 9 M 10 K 11 L 12 K 13 L 14 M 15 N 16 M 17 L 18 M 19 N 20 L 21 M 22 L 23 K 24 L 25 M kxlÆÕ©vbxq KGjGRi wbeÆvPwb cixÞvi Uc ˆMÉW cÉk² I Dîi: m†Rbkxj eüwbeÆvPwb

2 cvGéix ‰BP‰mwm ˆgBW BwR: cÉk² I Dîi imvqb cÉ^g cò 2. iscyi KÅvGWU KGjR imvqb : cÉ^g cò welq ˆKvW : 1 7 6 mgq– 25 wgwbU eüwbeÆvPwb AfxÞv gvb– 25 1. ˆKvb KÅvUvqbwU iwOb ˆhŒM MVb KGi? K Sc3+ L Mg2+ M Zn2+ N Ni2+ 2. ˆKvb ˆgŒjwUi AvqbxKiY kwÚ meGPGq ˆewk? K Na L K M Rb N Cs 3. = 3 ‰i RbÅ gÅvMGbwUK ˆKvqv´Ÿvg msLÅvi gvb KqwU? K 3 L 5 M 7 N 0 4. ˆKvb wewKÌqvi RbÅ, n = 1 ? K H2 + I2 = 2HI L PCl5 XoooooI PCl3 + Cl2 M N2 + 3H2 XoooooI 2NH3 N 2NO + O2 XoooooI 2NO3 5. wbGPi ˆKvb ˆKvqv´Ÿvg msLÅvi ˆmUwU mÁ¿e bq? K n = 1, = 1, m = 0, s = + 1 2 L n = 3, = 1, m = 0, s = 1 2 M n = 2, = 1, m = 1, s = + 1 2 N n = 4, = 3, m = 2, s = 1 2 6. cÉvK‡wZK msiÞK ˆKvbwU? K jeY L AÅvjGKvnj M wfGbMvi N digvwjb 7. NH4 + ‰i ˆK±`Êxq ˆgŒGji AiweUvj msKivqb ˆKvbwU? K sp L sp2 M sp3 N sp3 d 8. wbÁ²wjwLZ ˆhŒGM ˆKvb msKivqbwU we`Ågvb? B^vBb HC CH K sp2 d L sp M sp2 N sp3 9. wbÁ²wjwLZ wPòwUi D`vniY ˆKvbwU? K H2O L NH3 M BeCl2 N CO2 A wbGPi wewKÌqvwU cGov ‰es `yBwU cÉGk²i Dîi `vI: HA + H2O XoooooI A- + H3O+ 10. Abye®¬x AÁÏ-ÞviK ˆRvo ˆKvbwU? K HA, H2O L HA,A– M A , H3O+ N H2O, A– 11. 1.0 L cvGò HA ‰i 70% weGqvwRZ nq, ‰wmGWi Kc ‰i gvb ˆKvbwU? K 1.00 L 1.30 M 1.53 N 1.63 12. wbGPi wPòwU ˆ^GK cvB sp2 sp2 sp2 sp2 sp2 sp2 e®¬b e®¬b C C H H H H i. ‰wU B^vBb AYyi MVb ii. ˆKejgvò 2pz AiweUvj AmsKwiZ AeÕ©vq ^vGK iii. Bnv sp2 msKwiZ wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 13. ˆKvb evdviwU iGÚi pH wbq¯¨Y KGi? K CH3COOH/CH3COONa L NH4OH/NH4Cl M H2CO3 / NaHCO3 N CH3COOH/HCO3 14. wewKÌqvi nvGii ‰KK ˆKvbwU? K molL–1 s L Lmol –1 s –1 M molL–1 s –1 N L2 mol 15. AB2 ‰i `ËveÅZv S nGj Ksp ‰i gvb ˆKvbwU? K S2 L 4S3 M 27S4 N 108S5 16. A H1 H3 C H4 D H2 B H5 DóxcGK i. H3 + H4 = H1 + H2 ii. H1 = H3 + H5 iii. H4 = H5 + H2 wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 17. ˆKvbwU ˆhŒMwU AwaK mgGhvRx? K AgCl L AgF M AgI N AgBr 18. UÅvj&K ‰i ivmvqwbK msGKZ ˆKvbwU? K 3Al2O3. 4SiO2.H2O L 3MgO.4SiO2. H2O M 3Al2O3.2SiO2. 2H2O N MgO. 2 SiO2. 2H2O 19. AÁÏxq evdvi ‰i pH wbYÆGhi mwVK mgxKiY ˆKvbwU? K pH = pKa + log [jeY] [AÁÏ] L pH = pKa + log [AÁÏ] [jeY] M pH = pKa log [jeY] [AÁÏ] N pH = pKa – log [AÁÏ] [jeY] 20. MRI cixÞvi gvaÅGg ˆivM wbYÆGqi ˆÞGò i. MRI ‰i gƒjbxwZ NMR ‰i mvG^ mÁ·wKÆZ ii. MRI cixÞvq IR eÅen†Z nq iii. MRI cixÞvq ˆeZvi Ziã eÅen†Z nq wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 21. wbGPi ˆKvbwU AwaK kwÚkvjx AÁÏ? K HNO3 L HIO3 M H3PO4 N HClO4 22. AB3 ‰i `ËveÅZv àYdj 1.7 10–22 nGj `ËveÅZv KZ? K 6.3 10–14 molL–1 L 2.5 10–7 molL–1 M 5.0 10–4 molL–1 N 5.0 10-3 molL–1 23. wbGPi ˆKvbwU wjMÅv´£ bq? K NH3 L NaCl M AÅvjGKvnj N H2O wbGPi wPòwU jÞ KGiv ‰es ciewZÆ `yBwU cÉGk²i Dîi `vI| 100 80 60 40 20 0 H2 I I2 nËvm cvq % Nbgvòv HI ‰i e†w«¬ cvq 0 1 2 time/s 24. mÁÃyL wewKÌqvi ˆeM ‰es cøvr wewKÌqvi ˆeM mgvb nGj wewKÌqvwU K mvgÅveÕ©vq ˆcuŒGQ ˆMGQ L e®¬ nGqGQ M ‰KB AeÕ©vq iGqGQ N nËvmZi nGqGQ 25. H2(g) + I2 (g) XoooooI 2HI (g) ‰LvGb, i. wewKÌqvi ˆeM mgGqi mvG^ mvG^ nËvm cvq ii. HI ‰i Drcv`b e®¬ nGqGQ iii. mvgÅveÕ©v MwZkxj cÉK‡wZi wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii Dîi 1 N 2 K 3 M 4 N 5 K 6 K 7 M 8 L 9 N 10 L 11 N 12 N 13 M 14 M 15 L 16 N 17 M 18 L 19 * 20 L 21 N 22 * 23 L 24 K 25 L * we.`Ë.: 19. mwVK Dîi nGjv K I N| 22. mwVK Dîi nGjv 1.584 10–6 mol L–1 |

kxlÆÕ©vbxq KGjGRi cÉk² I Dîi: wbeÆvPwb cixÞv 2019 3 3. KzwgÍÏv KÅvGWU KGjR imvqb : cÉ^g cò welq ˆKvW : 1 7 6 mgq– 25 wgwbU eüwbeÆvPwb AfxÞv gvb– 25 1. wbGPi ˆKvb AvqbwU AÅvGgvwbqvg AÝvGjU eÅenvi KGi mbvÚ Kiv hvq? K Na+ L Ca2+ M Zn2+ N NH4 + 2. ˆKvbwU mvbwÕ˜b ˆjvkb ŠZwiGZ eÅen†Z nq? K Na2O L ZnO M Al2O3 N CuO 3. Lv`Å cPGbi KviY nGjv i. wjwcGWi DcwÕ©wZ ii. LvG`Åi RviY iii. AÅvw´ŸAwÝGWG´Ÿi NvUwZ wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 4. ‰KwU cj-eywã eÅvGj´Ö 5mg ivBWvi eÅen†Z nGj cwigvGci cwimi wbGPi ˆKvbwU? K 0.1 L 0.005 M 0.0001 N 0.000001 5. ˆKvb Rjxq `ËeYwU LiAlH4 eRÆÅ a»sm KiGZ eÅen†Z nq? K Na2CO3 L NaHSO4 M Na2SO4 N NaHCO3 6. Rjxq AeÕ©vq ˆKvb AÝvBGWi pH 7 ‰i ˆewk? K SiO2 L K2O M SO3 N P2O5 7. ˆmwggvBGKÌv weGkÏlGY i. 10 mg ˆ^GK 100 mg ii. 1 mL ˆ^GK 2 mL iii. 0.2 mL ˆ^GK 1.0mL wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii wbGPi DóxcKwU cGov ‰es 8 bs cÉGk²i Dîi `vI: 8. jÅveGiUwiGZ msiÞGYi RbÅ i. B ˆK KOH cvGò eÅenvi Kiv nq ii. C hyÚ ˆhŒM k¼mbZG¯¨i ÞwZ KiGZ cvGi iii. ˆiWb MÅvm aviK eÅen†Z nq wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 9. ˆKvb iwkÄi Ziã-msLÅv meGPGq Kg? K UV L IR M ˆjvwnZ N X 10. `ya nGjv K `ËeY L Bgvjkb M ˆRj N mvmGcbkb 11. ˆKvbwU `yeÆjZg AÅvwmW? K H3PO4 L H2SO4 M HClO4 N HNO2 wbÁ²wjwLZ DóxcKwU jÞ KGiv ‰es 12 I 13 bs cÉGk²i Dîi `vI: C12H22O11 + H2O BbfviGUR [A + B] RvBGgR [L + M] RviY E + H 12. A ˆhŒMwU Kx? K ™ÏyGKvR L AÅvjGKvnj M AÅvjwWnvBW N ‰wmW 13. E ˆhŒGMi `ËeYwU eÅen†Z nq? i. Lv`Å msiÞK wnmvGe ii. ™Ïvm wKÑbvGi iii. UqGjU wKÑbvGi wbGPi ˆKvbwU mwVK? K i L i I ii M ii I iii N i, ii I iii 14. wbÁ²wjwLZ cÉwKÌqvàGjvi gGaÅ ˆKvbwU Zvc Drcv`x? K evÓ·xKiY L Nbxfeb M Ea»ÆcvZb N Mjb 15. KClO3 ˆ^GK AwÝGRb ŠZwii mgq ˆKvbwU abvñK cÉfve wnGmGe eÅen†Z nq? K CaO L H2SO3 M MnO2 N HBr 16. chÆvq mviwYGZ AavZzàGjv ˆKvb eÐGK ivLv nq? K s L p M d N f 17. nvBGWvGRb e®¬b cÉ`vb KGi i. DNA ‰i Õ©vwqZ½ ii. mywZi KvcGoi `†pZv iii. cvwbGZ wPwbi `ËeYxqZv wbGPi ˆKvbwU mwVK? K i L i I ii M ii I iii N i, ii I iii wbGPi DóxcKwU jÞ KGiv ‰es 18 I 19 bs cÉGk²i Dîi `vI: MÉ‚c chÆvq 14 16 17 2 X Q R 3 Z 18. DóxcGKi ˆKvb cigvYyi AvKvi meGPGq ˆQvU? K X L Q M R N Z 19. DóxcK AbymvGi i. X ‰i nvBWÈvBGWi e®¬b ˆKvY Q ‰i ˆPGq ˆewk ii. Zwor FYvñKZv R > Z iii. BGjKUÇb AvmwÚ R < Z wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 20. HClO4 ‰i ÞviKZ½ KZ? K 1 L 2 M 3 N 4 21. eybGmb wkLvq eYÆ ˆ`q ˆKvbwU? K Be L Sr M Mg N Hg 22. wbGPi ˆKvb `ËeYwUi pH mGeÆvœP? K 0.005M H2SO4 L 0.01 M HCl M 2.5% NaOH N 0.02 M KOH 23. Õ¹zUbvGâi cv^ÆKÅ KZ ‰i ˆewk nGj AvswkK cvZb cÉGhvRÅ? K 20C L 40C M 60C N 80C 24. meyR imvqGbi gƒjbxwZ i. meÆvwaK AÅvUg BGKvGbvwg ii. wbivc` `ËveGKi eÅenvi iii. mnGR fvãbGhvMÅ DrcvG` cwiYZ Kiv wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 25. 4f AiweUvj KZwU BGjKUÇb aviY KiGZ cvGi? K 2 L 6 M 10 N 14 Dîi 1 L 2 L 3 N 4 M 5 M 6 L 7 K 8 N 9 L 10 L 11 N 12 K 13 K 14 L 15 M 16 L 17 N 18 M 19 N 20 K 21 L 22 M 23 K 24 N 25 N wPò-A wPò-B wPò-C

4 cvGéix ‰BP‰mwm ˆgBW BwR: cÉk² I Dîi imvqb cÉ^g cò 4. ˆdbx MvjÆm KÅvGWU KGjR imvqb : cÉ^g cò welq ˆKvW : 1 7 6 mgq– 25 wgwbU eüwbeÆvPwb AfxÞv gvb– 25 1. Z½GK ‰wmW coGj ˆKvb `ËeYwU eÅen†Z nq? K 5% Na2CO3 L 5% KOH M 5% NaOH N NaHCO3 2. jÅveGiUwiGZ ˆKvbwU Kiv DwPZ bq? i. LvIqv `vIqv ii. cvb Kiv iii. k¼vm-cÉk¼vm ˆbqv wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 3. ˆKvb AiweUvjwU mÁ¿e? K 3f L 3d M 2d N 1p 4. wbGPi ˆKvb AvqbwU AwaK Õ©vqx? K Fe2+ L Ni2+ M Cu+ N Cu2+ wbGPi DóxcKwU jÞ KGiv ‰es 5 I 6 cÉGk³i Dîi `vI: ˆkÉwY chÆvq 1 2 3 X Y 4 P Q 5. Q ˆgŒGji meÆewnÕ© AiweUvGji ˆPŒÁ¼Kxq ˆKvqv´Ÿvg msLÅvi gvb KZ? K 1 L 0 M + 1 N + 2 6. DóxcK AbymvGi i. mKj ˆgŒj wkLv cixÞv ˆ`q bv ii. Q mbvÚKiGY AÅvGgvwbqvg AÝvGjU eÅen†Z nq| iii. X ‰i nvBGWÈvÝvBWàGjv Y ‰i Zzjbvq `yeÆj ÞviK| wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 7. ivmvqwbK cixÞvMvGi eÅen†Z eyGiGUi cwigvGci Þz`ËZg gvb ˆKvbwU? K 0.005 mL L 0.01 mL M 0.1mL N 0.001mL 8. ˆKvbwUi AvqbxKiY kwÚ ˆewk? K Be L C M N N O 9. 0.005M w«¼AÁÏxq ÞviGKi pH KZ? K 10 L 11 M 12 N 13 10. ˆKvbwU AwaKZi kwÚkvjx AÁÏ? K HNO3 L H3PO4 M HClO4 N H2SO4 11. A2B3 ‰i `ËveÅZv S nGj Ksp ‰i gvb KZ? K 8S3 L 16S4 M 108S5 N 216S6 12. Fe(CN)6 ‰i ˆK±`Êxq cigvYywUGZ ˆKvb msKivqb NGU? K d2 sp3 L dsp2 M sp N sp2 d DóxcKwU cGov ‰es 13 I 14 bs cÉGk²i Dîi `vI: KÅvUvqb weKviK iO X2+ K4[Fe(CN)6] mv`v Y2+ jvjGP Z2+ Mvp bxj 13. DóxcGK Y nGjv K Fe L Zn M Cu N Ca 14. DóxcGKi nGZ cvB i. Õ©vqxZ½ KÌg; Z3+ > Z2+ ii. X ‰es Y ‰i ˆhŒMàGjv iwOb iii. Y ‰es Z AeÕ©v¯¦i ˆgŒj wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 15. UÅvjKg cvDWvi ‰i cÉavb Dcv`vb Kx? K CaCO3 L ˆevwiK ‰wmW M UÅvÍ• N MgCO3 16. AÓ¡K AcƒYÆ ˆhŒM nGjv i. H2O ii. BCl3 iii. NCl3 wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 17. ˆKvb AÝvBWwUi Rjxq `ËeY AwaK AÁÏxq? K CO L CO2 M SiO2 N P2O5 18. ˆKvbàGjv msiÞK wnGmGe eÅen†Z nq? i. CH3COOH ii. BHA, BHT iii. CH3OH wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 19. ˆKvb wbwÓ˜q MÅvmwU p-eÐK bq? K He L Ne M Ar N Kr wbGPi DóxcKwU cGov ‰es 20 I 21 bs cÉGk²i Dîi `vI: HA + H2O XoooooI A– + H3O+ 20. ˆKvbwU ˆRvowU Abye®¬x AÁÏ ÞviK? K HA, H2O L HA,A M A– , H3O+ N H2O, A– 21. 1L cvGò HA ‰i 70% weGqvwRZ nq| Kc ‰i gvb KZ? K 1 L 1.30 M 1.53 N 1.63 22. `yGai cÉavb ˆcÉvwUb ˆKvbwU? K ˆKGivwUb L wjwcW M ˆKwmb N jÅvKUveywgb 23. DfagÆx ˆKvbwU? K NH3 L HCO3 – M H3O+ N CO2 3 24. ˆKvbwUi ˆcvjvivqb ÞgZv meGPGq ˆewk? K Li2+ L Mg2+ M Al3+ N Ca2+ 25. ˆgŒj MÉ‚c chÆvq A 14 2 B 16 2 DóxcGKi ˆgŒjàGjv «¼viv MwVZ ˆhŒGMi Rjxq `ËeGYi cÉK‡wZ Kx nGe? K AÁÏxq L ÞviKxq M cÉkg N DfagÆx Dîi 1 N 2 K 3 L 4 K 5 L 6 K 7 M 8 M 9 M 10 M 11 M 12 K 13 M 14 M 15 M 16 * 17 N 18 K 19 K 20 L 21 N 22 M 23 L 24 M 25 K * we.`Ë.: 16. mwVK Dîi nGjv ÷ay (ii)|

kxlÆÕ©vbxq KGjGRi cÉk²cò: wbeÆvPwb cixÞv 2019 1 KÅvGWU KGjGRi cÉk²cò: wbeÆvPwb cixÞv 2019 1. wgRÆvcyi KÅvGWU KGjR, UvãvBj imvqb: cÉ^g cò welq ˆKvW: 1 7 6 mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² gvb: 50 1. wPò-A wPò-B wPò-C 500 mL K2Cr2O7 K. cvBGiÝ ™Ïvm Kx? 1 L. KwÕ¡K ˆmvWv ˆmGK´£vwi Õ¡Åv´£vWÆ c`v^Æ ˆKGbv? 2 M. wPò-C ‰i ˆgvjvi `ËeGY KZ MÉvg `Ëe `Ëexf„Z iGqGQ? 3 N. wPò 'A' ‰es 'B' ‰i gGaÅ cÉgvY `ËeY ŠZwiGZ ˆKvbwU AwaK DcGhvMx? weGkÏlY KGiv| 4 2. 10mL 0.1M AÅvwmwUK ‰wmW ‰es 4mL 0.1M NaOH ˆK ‰KwU cvGò ˆgkvGbv nGjv| K. cÉfveK DGîRK Kx? 1 L. HNO2 ‰wmW H3PO3 ‰wmW AGcÞv AwaK kwÚkvjx ˆKGbv? 2 M. DóxcGKi ÞviKwUi pH wbYÆq KGiv| 3 N. DóxcGKi wgkÉGY mvgvbÅ ‰wmW ev Þvi ˆhvM KiGj wgkÉGYi pH KxfvGe AcwiewZÆZ ^vGK? hywÚ `vI| 4 3. 25C Zvcgvòvq wZbwU cvGò wZbwU wf®² c`vG^Æi Rjxq `ËeY wbGÁ²vÚfvGe ˆbIqv nGjv| 5mL 0.1 M Al[OH]3 10mL 0.25 M FeCl3 1mL 0.5 M NH4OH A B C ‰LvGb, Al(OH)3 ‰es Fe(OH)3 ‰i Ksp h^vKÌGg 3.710-11 ‰es 3.74 10–38| K. mgAvqb Kx? 1 L. ZnO ‰KwU DfagÆx AÝvBW eÅvLÅv KGiv| 2 M. DóxcGKi 'A' ˆZ AewÕ©Z c`v^ÆwUi `ËveÅZv wbYÆq KGiv| 3 N. DóxcGKi 'B' ‰es 'C' `ËeY«¼qGK ‰KGò ˆgkvGbv nGj, ˆKvGbv Aa:ˆÞc coGe wKbv? weGkÏlY KGiv| 4 4. K L M wPò : A K. cÉavb ˆKvqv´Ÿvg msLÅv Kx? 1 L. Fe2+ ‰i ˆÞGò üG´£i bxwZwU eÅvLÅv KGiv| 2 M. DóxcGKi cigvYy gGWjwU mxgve«¬Zvmn eÅvLÅv KGiv| 3 N. DóxcGKi 'A' wPGò BGjKUÇb meÆewnÕ© kwÚÕ¦i ˆ^GK 2q kwÕ¦Õ¦Gi ˆbGg AvmGj wbMÆZ AvGjvK iwkÄi Ziã‹`NÆÅ ‰es eYÆ wbYÆq KGiv| 4 5. MÉ‚c chÆvq 14 15 16 17 2q X Y Z Q 3q R M K. Zwor FYvñKZv Kx? 1 L. 2d AiweUvj AmÁ¿e ˆKGbv? 2 M. DóxcGKi Y , Z ‰es Q ˆgŒjàGjvi ˆÞGò AvqbxKiY wefGei wf®²Zv eÅvLÅv KGiv| 3 N. RM4 Av`ËÆ weGkÏwlZ nq wK¯§ XM4 nq bv weGkÏlY KGiv| 4 6. AB5(g) XoooI AB3(g) + B2(g) ; H = + Ve ‰LvGb, 25C Zvcgvòv ‰es 1atm PvGc AB5 (g) ‰i weGqvRb gvòv 80%| K. `ËeY Zvc Kx? 1 L. ivmvqwbK mvgÅveÕ©vi Dci cÉfveGKi ˆKvGbv f„wgKv ˆbBeÅvLÅv KGiv| 2 M. DóxcGKi wewKÌqvwUi RbÅ Kp ‰i gvb wbYÆq KGiv| 3 N. AB3 (g) ‰i cwigvY mGeÆvœP KiGZ wK wK c`GÞc ˆbIqv ˆhGZ cvGi? weGkÏlY KGiv| 4 7. AvL A (myGKÌvR) B (ŠRe ‰wmW) K. dzW ˆjKvi Kx? 1 L. KuvPv Avg msiÞGY eËvBb eÅen†Z nq ˆKGbv? 2 M. 'A' nGZ 'B' cÉÕ§ZKiY mgxKiYmn AvGjvPbv KGiv| 3 N. DóxcGKi A ‰es B ‰i gGaÅ gvQ msiÞGY ˆKvb c`v^ÆwU Dîg? weGkÏlY KGiv| 4 8. X (PCl5), Y (NH3), Z (H2O) K. g†rÞvi avZz Kx? 1 L. STP ˆZ CHCl3 Zij AeÕ©vq ^vGK ˆKGbv? 2 M. DóxcGKi X- ˆhŒMwUi nvBweËWvBGRkb c«¬wZ AvGjvPbv KGiv| 3 N. Y ‰es Z AYymgƒGni e®¬b ˆKvGYi Zzjbv KGiv| 4 kxlÆÕ©vbxq KGjGRi wbeÆvPwb cixÞvi Uc ˆMÉW cÉk²cò: m†Rbkxj iPbvgƒjK

2 cvGéix ‰BP‰mwm ˆgBW BwR: cÉk²cò imvqb cÉ^g cò 2. iscyi KÅvGWU KGjR imvqb: cÉ^g cò welq ˆKvW: 1 7 6 mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² gvb: 50 1. H cigvYyi BGjKUÇGbi PZz^Æ AiweGUi eÅvmvaÆ 8.45 10–10m cigvYywUi w«¼Zxq ‰es Z‡Zxq ˆevi KÞcG^i ‰KwU BGjKUÇGbi kwÚ h^vKÌGg 5.42 10–12 erg ‰es 2.41 10–12 erg| (BGjKUÇGbi fi, em = 9.109 10–31kg ‰es h = 6.626 10-27ergs) K. ˆc´Ÿv AÅvwgGbvKvGeÆvGbGUvGKvevΟ (III) ˆKÑvivBW ‰i AvYweK msGKZ ˆjGLv| 1 L. Av¯¦:AvYweK ‰es A¯¦:AvYweK nvBGWÈvGRb e®¬b eÅvLÅv Kˆiv| 2 M. DóxcGKi PZz^Æ AiweUvGji BGjKUÇbwUi MwZGeM wbYÆq KGiv| 3 N. BGjKUÇbwU 3q Õ¦i ˆ^GK 2q Õ¦Gi AvmGj wewKwiZ kwÚi Ziã‹`NÆÅ wbYÆq KGiv| 4 2. wPwb (A) H2 O C6H12O6 RvBGgm B (l) RviY C K. ˆKvqvàGjkb Kx? 1 L. ™Ïvm wKÐbvGi KwÕ¡K ˆmvWv eÅen†Z nq bv ˆKGbv? 2 M. DóxcGKi C nGZ A cÉÕ§wZi gƒjbxwZ AvGjvPbv KGiv| 3 N. C «¼viv Lv`Å msiÞY c«¬wZ weGkÏlY KGiv| 4 3. PCl5 (g) XoooI PCl3 (g) + Cl2 (g); 25C Zvcgvòv ‰es 1atm PvGc PCl5 ‰i 80%. weGqvwRZ nGq PCl3 ‰es Cl2 Drc®² nq| K. cÉkgb Zvc Kx? 1 L. Zn AeÕ©v¯¦i ˆgŒj bq ˆKGbv? 2 M. DchyÆÚ wewKÌqv nGZ Kp ‰i gvb wbYÆq KGiv| 3 N. 70C Zvcgvòv ‰es 1.75 atm PvGc PCl5 ‰i 25% weGqvwRZ nGj, Kp ‰es Kc ‰i gvb wbYÆq KGiv (R = 0.082 LatmK–1 mol–1 ) 4 4. wbGPi ˆhŒMàGjv jÞ KGiv| (A) CH4 (B) C2H2 (C) NH3 K. mvmGcbkb Kx? 1 L. 0.0125 M Na2CO3 ‰i pH wbYÆq KGiv| 2 M. B ˆhŒMwUi nvBweËWvBGRkb c«¬wZ AvGjvPbv KGiv| 3 N. A I C ˆhŒGMi MvVwbK wf®²Zv nvBweËWvBGRkGbi gvaÅGg weGkÏlY KGiv| 4 5. He A B F Ne C S Cl Ar K. Ag ‰i BGjKUÇb webÅvm ˆjGLv| 1 L. MgCl2 ‰i Mjbvâ NaCl ‰i ˆPGq Kg ˆKGbv? 2 M. 30C Zvcgvòv ‰es 1 atm PvGc A2B4 ‰i ˆÞGò, Kp = 0.50 atm, weGqvRb gvòv wbYÆq KGiv| 3 N. AF3 Av`ËÆweGkÏwlZ nq bv wK¯§ ACl3 cvwbGZ Av`ËÆweGkÏwlZ nq| DchyÚ KviY ˆ`LvI| 4 6. (i) X2 (g) + Y2 (g) XoooooI 2 XY (g) (ii) A2 (g) + 3 B2 (g) XoooooI 2AB3 (g) ; H = Ve K. mKj p AiweUvj Aâb KGiv| 1 L. ZxeË ‰wmW ‰es ZxeË ÞvGii cÉkgb Zvc aË‚e ˆKGbv? 2 M. DóxcGKi (i) bs mgxKiGYi RbÅ Kp ‰es Kc ‰i ivwkgvjv wbYÆq KGiv| 3 N. jv kvGZwjGq bxwZ Abyhvqx DóxcGKi (ii) bs wewKÌqvwUGZ mGeÆvœP Drcv` cÉvwµ¦ MvwYwZKfvGe weGkÏlY KGiv| 4 7. 2s 2p sp3 E @ @ @ @ @ @ L K. BGjKUÇb AvmwÚ Kx? 1 L. MgCl2 ‰es CaCl2 ‰i gGaÅ ˆKvbwU AwaK mgGhvRx cÉK‡wZi? ˆKGbv?2 M. DóxcGKi wPò AbymvGi CH4 ‰i sp3 nvBweËWvBGRkb eÅvLÅv KGiv| 3 N. ˆKejgvò sp2 ‰es sp nvBweËWvBGRkGb e®¬b ˆ`Lv hvq| hG^vchyÚ MVGbi mvnvGhÅ eÅvLÅv KGiv| 4 8. log K log A Xvj = E 2.303R 1 T K1 wPò : A 100 80 60 40 20 0 H2 I I2 nËvm cvq % Nbgvòv HI ‰i e†w«¬ wPò : B 0 1 2 time/s K. wjMÅv´£ Kx? 1 L. ˆnGmi mƒòwU eÅvLÅv KGiv| 2 M. DóxcGKi wPò B- ˆZ ivmvqwbK mvgÅveÕ©vi MwZkxj cÉK‡wZ ˆ`LvGbv nGqGQ-AvGjvPbv KGiv| 3 N. y = mx + c mƒGòi AvGjvGK DóxcGKi wPò A- ˆK weGkÏlY KGiv| ˆhLvGb cÉwZwU Dcv`vb Õ¼Z¯¨| 4

kxlÆÕ©vbxq KGjGRi cÉk²cò: wbeÆvPwb cixÞv 2019 3 3. KzwgÍÏv KÅvGWU KGjR imvqb: cÉ^g cò welq ˆKvW: 1 7 6 mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² gvb: 50 1. (i) (ii) (iii) K. evÓ·cvZb Kx? 1 L. ZnO ˆKb DfagÆx AÝvBW? 2 M. (iii) bs h¯¨wUGK KxfvGe evÓ· «¼viv Zvc ˆ`Iqv hvqeÅvLÅv KGiv| 3 N. AvqZbwgwZK weGkÏlGY DóxcGKi (i) I (ii) bs h¯¨ `yBwU eÅen†Z nq ˆKb? weGkÏlY KGiv| 4 2. 'X' cigvYyi BGjKUÇb webÅvm wbGÁ² ˆ`Iqv nGjv: 1s 2s 2p e1 e2 K. ˆmwg gvBGKÌv weGkÏlY Kx? 1 L. eid cvwbGZ fvGm ˆKGbv? 2 M. DóxcGKi 'X' cigvYyi AvqbxKiY kwÚ bvBGUÇvGRGbi ˆPGq Kg ˆKGbv? eÅvLÅv KGiv| 3 N. e1 I e2& ‰i RbÅ cwji eRÆb bxwZ cÉGhvRÅ nGe bvwK nGe bv weGkÏlY KGiv| 4 3. BaSO4 we÷«¬ H2O X BaSO4 0.01M BaCl2 Y AÁÏxq Cu2+ ‰es Zn2+ `ËeY B Þvixq Cu2+ ‰es Zn2+ `ËeY Y K. `ËveK wbÓ•vkb Kx? 1 L. HClO4 I HBrO4 ‰i gGaÅ ˆKvbwU ZxeË ‰wmW ‰es ˆKb? 2 M. 'Y' ‰ BaSO4 ‰i `ËveÅZv, 'X' ‰ `ËveÅZvi ˆPGq Kg ˆKGbv? MvwYwZKfvGe weGkÏlY KGiv| 3 N. DóxcGKi B `ËeGY ‰KwU KÅvUvqGbi AatGÞc cGo, wK¯§ C `ËeGY Dfq AvqbB AatwÞµ¦ nq ˆKGbv? weGkÏlY KGiv| 4 4. ˆgŒj ˆkl KÞcG^i BGjKUÇb webÅvm ˆhŒM ev Avqb Y ns2 np1 n =3 (i) YCl3 Z (n-1) d6 ns2 n =4 (ii) [Z(CN)6] 4 (iii) [Z(CN)6] 3 K. meyR imvqb Kx? 1 L. ˆnGmi Zvc mgwÓ¡KiY mƒòwU weGkÏlY KGiv| 2 M. DóxcGKi (i) bs ˆhŒMwU WvBgvi MVb KGi ˆKb eÅvLÅv Ki| 3 N. DóxcGKi (i) I (ii) bs ˆhŒGMi MVbvK‡wZ ‰KB nGjI ‰KwU ˆhŒM WvqvgÅvMGbwUK I AciwU cÅvivgÅvMGbwUK ˆKGbv? msKivqbmn eÅvLÅv KGiv| 4 5. (i) KÅvUvqGbi AvKvi: X2+ < Y2+ < Z2+ (ii) AÅvbvqGbi AvKvi: R– < M– < Q K. mvmGcbkb Kx? 1 L. ‰bRvBgGK ŠRe cÉfveK ejv nq ˆKb? 2 M. DóxcGKi YQ2 ˆhŒMwU YR2 ‰i ˆPGq ˆewk mgGhvRx eÅvLÅv KGiv| 3 N. ZCO3, XCO3 I YCO3 ‰i gGaÅ ˆKvbwU ˆewk Zvcmn? 4 6. wewKÌqv 35C ‰ nvi aË‚eK 60C ‰ nvi aË‚eK AB5 AB3 + B2 H = + Zvc 3.46 10–5 4.65 10–3 K. ˆbmjvi weKviK Kx? 1 L. ™Ïvm wKÑbvGi KwÕ¡K ˆmvWvi e`Gj AÅvGgvwbqv eÅenvi Kiv nq ˆKGbv eÅvLÅv KGiv| 2 M. DóxcGKi wewKÌqvwUi mwKÌqb kwÚ ˆei KGiv| 3 N. ˆKvb kGZÆ DóxcGKi wewKÌqv ˆ^GK mGeÆvœP B2 Drcv`b Kiv hvGe weGkÏlY KGiv| 4 7. 1.5M NH4OH 0.86M NH4Cl 1L `ËeY (i) Kb = 1.75105 (i) H2SO4 + NaOH Drcv`, H = x (ii) H2CO3 + KOH Drcv`, H = y K. ˆKvqvàGjkb Kx? 1 L. AeÕ©v¯¦i avZz iwOb ˆhŒM MVb KGi ˆKGbv? 2 M. DóxcGKi (i) bs `ËeGYi pH Gei KGiv| 3 N. DóxcGK 'y' ‰i gvb 'x' ‰i ˆPGq Kg ˆKGbv weGkÏlY KGiv| 4 8. 1g cÉwKÌqv Lv`Å miGeU I ˆeRbGqU ˆhŒM Lv`Å cÉwKÌqvRvZKiY 2q cÉwKÌqv Lv`Å (I) eÐvwçs wPwb I jeY ˆhvM (II) ‰MRwÕ¡s (III) wiUwUÆs Lv`Å cÉwKÌqvRvZKiY K. [Co(NO2)3 (NH3)3] ‰i bvg Kx? 1 L. O2 AYyGZ wmMgv I cvB e®¬b DfqB cvIqv hvq eÅvLÅv KGiv| 2 M. w«¼Zxq cÉwKÌqvwUGZ (I), (II) I (III) avGci ài‚Z½ eÅvLÅv KGiv| 3 N. DóxcGKi ˆKvb cÉwKÌqvwU Õ¼vGÕ©Åi RbÅ wbivc`-ˆZvgvi gZvgZ `vI|4

4 cvGéix ‰BP‰mwm ˆgBW BwR: cÉk²cò imvqb cÉ^g cò 4. ˆdbx MvjÆm KÅvGWU KGjR imvqb: cÉ^g cò welq ˆKvW: 1 7 6 mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² gvb: 50 1. K. mvmGcbkb Kx? 1 L. ˆnGmi mƒò «¼viv Kx ˆevSvq? 2 M. A-cvGòi pH ˆei KGiv| (Ka = 1.8 10-5 at 25C) 3 N. “DóxcGKi C-cvGòi `ËeGY A͸ cwigvY H+ I OH– ˆhvM KiGj pH AcwiewZÆZ ^vGK” weGkÏlY KGiv| 4 2. 20C Zvcgvòvq MN ‰i Ksp = 3.5 10–4 I PQ ‰i Ksp = 2.5 10–2 MN jeY 0.3M PQ jeY 0.01M K. kwÚÕ¦i Kx? 1 L. wmMgv I cvB e®¬Gbi gGaÅ cv^ÆKÅ ˆjGLv| 2 M. 20C ‰ MN ‰i `ËveÅZv wbYÆq KGiv| 3 N. DóxcGKi `yBwU `ËeY wgwkÉZ KiGj AatGÞc coGe Kx? eÅvLÅv KGiv|4 3. 300K Zvcgvòvq ‰es 1.5 atm PvGc 1.2 mol Q I 0.8 mol R ‰i wewKÌqvwU 2L cvGò msNwUZ nq| mvgÅveÕ©vq 0.6 mol QR Drc®² nq| wewKÌqvwU wbGÁ² ˆ`Iqv nGjv: Q2 (g) + R2 (g) XoooooI 2QR (g) H = Ve K. fi wKÌqvi mƒòwU wee†Z KGiv| 1 L. mvgÅaË‚eGKi gvb KLGbv kƒbÅ ev Amxg nq bv ˆKGbv-eÅvLÅv KGiv| 2 M. Kp I Kc ‰i gvb ˆei KGiv| 3 N. QR ‰i mGeÆvœP Drcv`Gbi RbÅ wK wK c`GÞc wbGZ nGe? KviYmn eÅvLÅv KGiv| 4 4. 2 KveÆb wewkÓ¡ ŠRe ‰wmW B wjKvi M=17 KwÕ¡K ˆmvWv A B C K. MSDS Kx? 1 L. ‰wmGWi weGqvRb aË‚eK ejGZ wK ˆevS? 2 M. 'A' ‰i Lv`Å msiÞY ˆKŒkj AvGjvPbv KGiv| 3 N. 'B' I 'C' weKviGKi gGaÅ ˆKvbwU ™Ïvm cwiÓ•vi KiGY DcGhvMx? 4 5. A B K. ˆgvjvwiwU Kx? 1 L. ˆmGK´£vwi Õ¡Åv´£vWÆ c`v^Æ ejGZ wK ˆevS? 2 M. 'A' ‰i cwiÓ•vi ˆKŒkj AvGjvPbv KGiv| 3 N. DóxcGKi ˆKvb h¯¨wU ZiGji AvqZb mwVKfvGe gvcGZ cvGi? 4 6. K2HgI4 A KOH B X2SO4 + (A + B) ev`vgx AatGÞc K. AvBGmvevi Kx? 1 L. üG´£i wbqg wee†Z KGiv| 2 M. DchyÚ wewKÌqvmn 'X' mbvÚ KGiv| 3 N. DóxcGKi `ËeGYi cwieGZÆ Ba(OH)2 `ËeY eÅenvi KiGj wK ˆKvb mgmÅv nGZv? weGkÏlY KGiv| 4 7. MÉ‚c chÆvq 1 17 2q X 3q P Y 4^Æ Z K. AGUv cÉfveK Kx? 1 L. ‰Ug BGKvbwg eÅvLÅv KGiv| 2 M. 'Y' ‰i BGjKUÇb AvmwÚ 'X' ‰i ˆPGq ˆewk eÅvLÅv KGiv| 3 N. PY I PZ ‰i AvqwbK ŠewkÓ¡ÅmgƒGni Zzjbv KGiv| 4 8. A2+ = [Ne] 3s0 B2+ = [Ar] 4s0 C3+ = [Ne] 3s0 3p0 K. cÉfveK wel Kx? 1 L. "R ‰i gvb memgq 1 ‰i ˆPGq Kg” eÅvLÅv KGiv| 2 M. 'C' ˆgŒjwUi ˆKÑvivBW WvBgvi MVb KGi eÅvLÅv KGiv| 3 N. 'A' I 'B' ‰i gGaÅ ˆKvb KveÆGbU jeYwU AwaKZi mywÕ©Z-weGkÏlY KGiv| 4 100 mL 0.1 M CH3COOH cvò-A 30 mL 0.1 M NaOH cvò-B A + B cvò-C

kxlÆÕ©vbxq KGjGRi cÉk² I Dîi: wbeÆvPwb cixÞv 2019 1 kxlÆÕ©vbxq KGjGRi cÉk² I Dîi : wbeÆvPwb cixÞv 2019 1. UsMx miKvwi KGjR, MvRxcyi imvqb : cÉ^g cò welq ˆKvW : 1 7 6 mgq– 25 wgwbU eüwbeÆvPwb AfxÞv gvb– 25 1. KBF4 AYyGZ e®¬b we`Ågvb i. AvqwbK ii. mgGhvRx iii. mw®²Gek wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 2. ‰KwU UÇvwdK evwZ ˆ^GK wbMÆZ meyR AvGjvi Ziã‹`NÆÅ 522nm nGj ‰i KÁ·vâ KZ? K 522 10–6 Hz L 5.22 10–9 Hz M 5.75 1014Hz N 5.57 1014Hz wbGPi DóxcKwU cGov ‰es 3 I 4 bs cÉGk²i Dîi `vI: 3. DóxcGKi O cigvYyi ˆhvRÅZv Õ¦Gi gyÚ ˆRvo BGjKUÇb msLÅv KZwU? K 1 L 2 M 3 N 4 4. sp2 msKiY nIqv mGî½I cÉ`î AYywUi e®¬b ˆKvGbv 10928 bv nGq 1040 nq ˆKGbv? K AwÝGRGbi Zwor FYvñKZvi KviGY L nvBGWÈvGRGbi Zwor FYvñKZvi KviGY M gyÚGRvo BGjKUÇGbi weKlÆGYi KviGY N e®¬b ˆRvo BGjKUÇGbi weKlÆGYi KviGY 5. cÉvBgvwi Õ¡Åv´£vWÆ c`v^Æ wnGmGe ˆKvbwU eÅen†Z nq? K KMnO4 L K2Cr2O7 M Na2S2O4 N NaOH 6. 100 wg. wj ˆWwmGgvjvi `ËeY ŠZwi KiGZ KZUzKz Na2CO3 jvMGe? K 1.06 MÉvg L 20.6 MÉvg M 17.4 MÉvg N 5.3 MÉvg 7. ˆKvqvàGjkGbi AvwfavwbK A^Æ Kx? K PvRÆhyÚ nIqv L RgvU euvav M `Ëexf„Z nIqv N wewÞµ¦ nIqv 8. 0.15M H2SO4 `ËeGYi pH KZ? K 0.523 L 0.824 M 0.15 N 0.3 9. B^vbj nGZ wfGbMvi cÉÕ§wZi mgq ˆKvbwUi cÉGqvRb? K gvBGKvWvgÆv AÅvwmGUv L CÕ¡ M BbfviGUR N RvBGgR 10. Lv`Å ˆKŒUvRvZKiY cvGò XvKbv jvMvGbvi AvGM Lv`Å weGkl cÉwKÌqvq Zvc w`Gq cvGòi ˆfZGii me evqy `ƒi KivGK Kx ejv nq? K eÐvwçs L ‰MRwÕ¡s M wmwjs N wiUwUs 11. ™Ïvm wKÑbvGii mwKÌq Dcv`vb Kx? K KwÕ¡K ˆmvWv L KwÕ¡K cUvk M jNy AÅvGgvwbqv `ËeY N wfGbMvi 12. 0.15M H2SO4 `ËeGYi pH KZ? K 0.523 L 0.824 M 0.15 N 0.3 13. Õ¹zUbvGâi cv^ÆKÅ 40C ‰i Kg nGj ˆKvb c«¬wZGZ c†^KxKiY KiGZ nq? K Ea»ÆcvZb L `ËveK wbÓ•vkb M mvaviY cvZb N AvswkK cvZb 14. wbGPi ˆKvbwUi eÅvmvaÆ eo? K Fe L Fe+ M Fe2+ N Fe3+ 15. ˆUÕ¡ wUDeGK KZ wWwMÉ ˆKvGY Zvc w`GZ nq? K 180 L 90 M 60 N 45 16. MSDS ‰i cƒYÆi…c Kx? K Materials Safety Data Sheets L Materials Strong Data Sheets M Materials Safety Division Sheets N Materials Strong Divided Sheets 17. p DckwÚÕ¦Gii RbÅ i. l = 1 ii. m = 1, 0, + 1 iii. AiweUvj msLÅv 2 wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii wbGPi DóxcKwU jÞ Ki ‰es 18 I 19 bs cÉGk²i Dîi `vI: An+ + NH4CNS `ËeY 18. An+ `ËeYwU jvj eGYÆi nGj AvqbwU nGe K Fe3+ L Al3+ M Cu2+ N Ca2+ 19. `ËeYwUi eGYÆi ˆKvGbv cwieZÆb bv nGj i. An+ AvqGbi ˆgŒjwU AeÕ©v¯¦i ˆgŒj ii. WvqvgÅvMGbwUK agÆ cÉ`kÆb KGi iii. Qq mw®²Gek msLÅvi RwUj ˆhŒM MVb KGi wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 20. chÆvq mviwYi ˆKvb ˆkÉwYi ˆgŒjGK PÅvjGKvGRb eGj? K 13 L 14 M 15 N 16 21. wbGPi ˆKvb hyMGji `ywU ˆgŒjB AÓ¡K mÁ·ÉmviY NUvGZ cvGi? K Al I S L Al I Si M Al I Sb N Si I P 22. ˆKvbwU fÅvwbwks wKÌGgi cÉavb Dcv`vb? K wÕ¡qvwiK ‰wmW L cvwgwUK ‰wmW M IwjK ‰wmW N miweUj 23. gvbyGli iGÚi pH KZ? K 4.5 L 5.4 M 6.9 N 7.4 24. mwKÌq fi ejGZ ˆevSvq i. ˆgvjvi Nbgvòv ii. AvswkK Pvc iii. AvYweK fi wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 25. cÉkgb Zvc KLb wÕ©i nq? K `ËeGY eÅen†Z ‰wmW I Þvi DfqB ZxeË nGj L `ËeGYi eÅen†Z ‰wmW I Þvi DfqB `yeÆj nGj M `ËeGY eÅen†Z ‰wmW `yeÆj I Þvi ZxeË nGj N `ËeGY eÅen†Z ‰wmW ZxeË I Þvi `yeÆj nGj Dîi 1 N 2 M 3 L 4 M 5 L 6 K 7 L 8 K 9 K 10 L 11 M 12 K 13 N 14 K 15 N 16 K 17 K 18 K 19 N 20 N 21 N 22 K 23 N 24 K 25 K kxlÆÕ©vbxq KGjGRi wbeÆvPwb cixÞvi Uc ˆMÉW cÉk² I Dîi: m†Rbkxj eüwbeÆvPwb 104.5

2 cvGéix ‰BP‰mwm ˆgBW BwR: cÉk² I Dîi imvqb cÉ^g cò 2. knx` iwgR Dwób KÅv´ŸbGg´Ÿ KGjR, XvKv imvqb : cÉ^g cò welq ˆKvW : 1 7 6 mgq– 25 wgwbU eüwbeÆvPwb AfxÞv gvb– 25 1. s-eÐK ˆgŒGji msLÅv KZwU? K 12 L 13 M 14 N 15 2. wbGPi ˆKvbwU ˆmGK´£vwi Õ¡Åv´£vWÆ c`v^Æ? K H2C2O4 L H2SO4 M Na2CO3 N K2Cr2O7 3. Be2+, Mg2+, K+ I Ca2+ KÅvUvqGbi ˆcvjvivqGbi mwVK KÌg ˆKvbwU? K Mg2+ < K+ < Ca2+ < Be2+ L Be2+ < K+ < Ca2+ < Mg2+ M Ca2+ < Mg2+ < Be2+ < K+ N K+ < Ca2+ < Mg2+ < Be2+ 4. evdvi `ËeGYi ˆÞGò i. pH = pKa 1 ii. 5mL 0.2M HCl + 10 mL 0.2M NH4OH wgwkÉZ KiGj evdvi `ËeY ŠZwi KGi iii. iGÚ we`Ågvb evdvi NaHCO3 + H2CO3 wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii wbGPi DóxcKwU cGov ‰es 5 I 6 bs cÉGk²i Dîi `vI: MÉ‚c chÆvq 1 17 2 A X 3 Y D 5. Y ˆgŒjwU wkLv cixÞvq ˆKvb eYÆ ˆ`q? K bxjvf meyR L ˆeàwb M BGUi gGZv jvj N ˆmvbvjx njy` 6. DóxcGKi ˆgŒjmgƒGni RbÅ ˆKvbwU mwVK? i. BGjKUÇb AvmwÚi ˆÞGò, D > Y ii. weGqvRb cÉeYZvi ˆÞGò, A2CO3 > Y2CO3 iii. Y ‰i Zzjbvq X kwÚkvjx weRviK c`v^Æ wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 7. K‡wòg dzW wcÉRviGfwUfm ‰i ˆÞGò i. ‰w´ŸgvBGKÌvweqvj ‰GR´Ÿ Lv`Å`ËGeÅi eÅvKGUwiqv I BGÕ¡i AvKÌgY ˆiva KGi ii. ‰w´Ÿ AwÝGW´Ÿ Lv`Å`ËeÅGK RvwiZ KiGZ mnvqZv KGi iii. wKGjwUs ‰GR´Ÿ wnmvGe EDTA eÅenvi Kiv nq wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 8. msKwiZ AiweUvjmgƒn i. meÆ`vB -e®¬b MVb KGi ii. ‰G`i cÉGZÅGKi kwÚ mgvb iii. meÆ`vB -e®¬b MVb KGi wbGPi ˆKvbwU mwVK? K i L ii M i I ii N ii I iii 9. wbGPi ˆKvb wgkÉYwU KvGPi h¯¨cvwZi cwiÓ•viK? K K2Cr2O7 I H2SO4 ‰i `ËeY L K2Cr2O7 I HCl ‰i `ËeY M KMnO4 I H2SO4 ‰i `ËeY N KMnO4 I HCl ‰i `ËeY 10. Mg(OH)2 ‰i `ËveÅZv S nGj Ksp ‰i gvb KZ? K S2 L S3 M 2S3 N 4S3 11. Cr ‰i meÆGkl BGjKUÇbwU ˆKvb AiweUvGj cÉGek KGi? K d-AiweUvj L f-AiweUvj M s-AiweUvj N p-AiweUvj 12. wbGÁ²i ˆKvbwUi Rjxq `ËeY AÁÏagÆx? K NaCl L KCl M AlCl3 N NaNO3 13. ˆccvi ˆKÌvgvGUvMÉvwd cixÞvq R ‰i gvb KZ? K 1.5 L 1.0 M 0.75 N 0.0 14. ˆKvb AiweUvGj BGjKUÇb AvGM cÉGek KiGe? K 3d L 3f M 4p N 4s 15. UqGjU wKÑbvGii cÉavb Dcv`vb ˆKvbwU? K NaOH L NH4OH M Na2CO3 N (NH4)2CO3 16. Avqb AvweÓ¡ WvBGcvj AvKlÆY eGji D`vniY wbGPi ˆKvbwU bq? K Zn2+ ---- O2 L Cl ---- H2O M I ------ I2 N Fe2+ ---- H2 17. ˆmwggvBGKÌv c«¬wZGZ KZ MÉvg c`v^Æ eÅen†Z nq? K 0.5 1.0 g L 0.05 0.2 g M 0.005 0.01 g N 10 50 g DóxcKwU cGov ‰es 18 I 19 bs cÉGk²i Dîi `vI: MÉ‚c chÆvq 8 9 10 4^Æ A B C 18. wbGPi ˆKvbwU mwVK? K A3+ Avqb I CN wjMÅvG´£i mg®¼Gq MwVZ AvqGbi gÅvMGbwUK ˆgvGgG´Ÿi gvb kƒbÅ L B3+ Avqb I CN wjMÅvG´£i mg®¼Gq MwVZ AvqGbi gÅvMGbwUK ˆgvGgG´Ÿi gvb kƒbÅ M B3+ Avqb I F wjMÅvG´£i mg®¼Gq MwVZ AvqGbi gÅvMGbwUK ˆgvGgG´Ÿi gvb kƒbÅ N C2+ Avqb I Cl wjMÅvG´£i mg®¼Gq MwVZ AvqGbi gÅvMGbwUK ˆgvGgG´Ÿi gvb kƒbÅ 19. wbGPi DwÚàGjv jÞ KGiv i. C(CO)4 I [C(CN)4] 2 DfGqB WvqvPzÁ¼KZ½ agÆ cÉ`kÆb KGi ii. C(CO)4 AYyGZ sp3 msKivqb nGjI [C(CN)4] 2 ‰i gGaÅ dsp2 msKivqb NGU iii. [A(CN)6] 3 I [B(CN)6] 3 Dfq ˆÞGòB dsp2 msKivqb NGU wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 20. 500 mL 0.1 M NaOH `ËeY cÉÕ§Z KiGZ KZ MÉvg NaOH `iKvi? K 10 L 8 M 5 N 2 21. [Ni(CO)4] RwUj ˆhŒGM ˆKvb aiGbi msKiY NGU? K d2 sp3 L dsp2 M sp2 d N sp3 22. NH4 + ‰ Kx Kx aiGbi e®¬b iGqGQ? i. AvqwbK ii. mgGhvRx iii. mw®²Gek wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 23. wbGPi ˆKvbwU wKGjwUs ‰GR´Ÿ? K BHT L miweU M ‰mKiweK ‰wmW N BHA DóxcKwU cGov ‰es 24 I 25 bs cÉGk²i Dîi `vI: wewKÌqvi AÞ kwÚ (E) Drcv` wewKÌqv E1 E3 E2 24. mwKÌqb kwÚ ˆKvbwU? K E3 L E2 E1 M E3 E1 N E3 E2 25. DóxcK AbymvGi i. ‰wU ‰KwU ZvGcvrcv`x wewKÌqv ii. ‰LvGb H = E2 E1 iii. E3 ‰i gvb evoGj wewKÌqvi nvi evoGe wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii Dîi 1 M 2 L 3 N 4 N 5 N 6 K 7 L 8 M 9 K 10 N 11 K 12 M 13 M 14 N 15 K 16 L 17 L 18 L 19 K 20 N 21 N 22 M 23 M 24 M 25 K

kxlÆÕ©vbxq KGjGRi cÉk² I Dîi: wbeÆvPwb cixÞv 2019 3 3. wdGivRv evkvi AvBwWqvj KGjR, XvKv imvqb : cÉ^g cò welq ˆKvW : 1 7 6 mgq– 25 wgwbU eüwbeÆvPwb AfxÞv gvb– 25 1. ˆMvjZjx dÑvÕ• «¼viv mÁ·v`b Kiv nq i. widÑvÕ• ii. cvZb iii. cÉgvY `ËeY cÉÕ§wZ wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 2. MÐ~GKvR nGZ AÅvjGKvnj cÉÕ§wZGZ ˆKvb ‰bRvBg eÅen†Z nq? K RvBGgR L BbfviGUR M ‰wmGUv-eÅvKUi N gGΟR 3. ˆebwRGb wmMgv e®¬b KqwU? K 10 L 12 M 14 N 16 4. ˆKvb Zvcgvòvq cvwbi AvqwbK àYdGji gvb meÆvwaK? K 10C L 25C M 30C N 100C 5. AcwUKvj dvBevGii cÉavb Dcv`vb ˆKvbwU? K CaO L MgO M CuO N SiO2 6. PbCl2 ‰i `ËveÅZv àYdj 1.6105 nGj Pb2+ AvqGbi Nbgvòv KZ? K 1.6 102 L 3.2 102 M 1.6 105 N 3.2 105 7. ˆKvbwU ™ÏvGmi Þq KGi? K H+ (aq) L HBr(aq) M HCl(aq) N HF(aq) 8. mvgÅveÕ©vq NO2 ‰i AvswkK Pvc N2O4 2NO2 K 2P 1 L 2P 1 + M P 1 + N P 1 9. ˆKvb AÝvBGWi Rjxq `ËeGYi pH ‰i gvb 7 ‰i ˆewk? K Na2O L Cl2O7 M SiO2 N SO2 10. cçg kwÚ Õ¦Gi ˆgvU AiweUvj K 16 L 32 M 25 N 50 11. K2Cr2O7 + H2SO4 (Mvp) wgkÉYwU i. ‰KwU RviK c`v^Æ ii. cwiÓ•viK wgkÉY iii. cÉfveKi…Gc KvR KGi wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 12. cjeywã eÅvGjG´Öi meÆWvGb 100 `vM, ivBWvi fi 5mg nGj ivBWvi aË‚eK KZ MÉvg K 0.0001g L 0.00001g M 0.00002g N 0.0002g 13. ˆKvbwUi weGqvRb Zvcgvòv meGPGq Kg? K Na2CO3 L MgCO3 M K2CO3 N BaCO3 14. evdvi `ËeY nGjv i. 30mL 0.1 M CH3COOH I 15mL 0.1 M NaOH ‰i wgkÉY ii. 30mL 0.1M CH3COOH I 30mL 0.1 M NaOH ‰i wgkÉY iii. 25mL 0.1 M NH4OH I 15mL 0.1 M HCl ‰i wgkÉY wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 15. ˆKvb ˆgŒGj meÆvwaK msLÅK Ahy™Â BGjKUÇb AvGQ? K Co L Fe M Mn N Cr 16. ˆKvbwUi Mjbvâ Kg? K AgF L AgCl M AgBr N AgI 17. ‰w´Ÿ AwÝGWG´Ÿi KvR nGjv i. RviY wKÌqvGK g¯©i Kiv ii. Zvcgvòv wbq¯¨Y Kiv iii. cvwb ˆkvlY Kiv wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 18. ˆKvbwU cÉvBgvwi Õ¡Åv´£vWÆ c`v^Æ K HCl L H2SO4 M H2C2O4 N HNO3 19. Ca(OH)2 `ËeY ˆPvGL coGj wbGPi ˆKvb `ËeY w`Gq ayGZ nq? K HCl `ËeY L H3BO3 M NaOH N NaCl 20. ˆKvb cÉwKÌqvwU Zvc Drcv`x? K e®¬b weGqvRb L evÓ·xfeb M Mjb N Nbxfeb 21. `ËeY Na+ Avqb kbvÚKiGY ˆKvb `ËeY eÅen†Z nq? K K2H2Sb2O7 L Na2H2Sb2O7 M KH2Sb2O7 N AgNO3 22. ˆKvGbv w«¼-AÁÏxq ÞvGii ˆgvjvi Nbgvòv 0.05M nGj pH KZ? K 10 L 11 M 1 N 13 23. gvbyGli iGÚ ˆKvb evdviwU pH wbq¯¨Y KGi bv? K dmGdU evdvi L evBKveÆGbU evdvi M AÅvwmGUU evdvi N ˆcËvwUb evdvi 24. ˆKvbwUi 1g AvqbxKiY kwÚ ˆewk? K Be L C M O N N 25. ˆKvb aiGbi ˆKÌvgvGUvMÉvwdGZ cvwb I wg^vbGji wgkÉYGK Pjgvb `kv wnmvGe eÅenvi Kiv nq? K GC L HPLC M GPLC N TLC Dîi 1 K 2 K 3 L 4 N 5 N 6 K 7 N 8 L 9 K 10 K 11 K 12 K 13 L 14 L 15 N 16 N 17 * 18 M 19 L 20 N 21 K 22 M 23 M 24 N 25 L * we.`Ë.: 17. mwVK Dîi nGjv ÷ay (i)|

4 cvGéix ‰BP‰mwm ˆgBW BwR: cÉk² I Dîi imvqb cÉ^g cò 4. ‰m I ‰m nvigÅvb ˆgBbvi KGjR, XvKv imvqb : cÉ^g cò welq ˆKvW : 1 7 6 mgq– 25 wgwbU eüwbeÆvPwb AfxÞv gvb– 25 1. 0.0001M NaOH ‰i pH KZ? K 3 L 7 M 10 N 11 2. `yeÆj ‰wmW (CH3COOH) I ZxeË ÞvGii (NaOH) cÉkgb ZvGci gvb KZ? K 57.28 kJ mol–1 L 68.7 kJ mol–1 M 55.2 kJ mol–1 N 50.4 kJ mol–1 3. MÉ‚c IIA avZzmgƒGni ˆKvbwUi mvjGdU cvwbGZ meÆvwaK `ËeYxq? K SrSO4 L CaSO4 M BeSO4 N BaSO4 4. ˆcÉvUbxq gZev` Abyhvqx ‰wmW K H2O L SO3 M AlCl3 N NH3 5. AwaK kwÚkvjx AÁÏ K HBr L HCl M HI N HF 6. AlCl3 ‰i Rjxq `ËeGYi pH K < 7 L > 7 M 7 N 0 7. 100mL ˆgvjvi `ËeGY KZ MÉvg H2SO4 `Ëexf„Z ^vGK? K 0.98 102 g L 0.98 10–1 g M 0.98g N 9.8g 8. memgq wmMgv e®¬b MVb KGi i. msKi AiweUvj ii. s AiweUvj iii. p AiweUvj wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 9. 2NH3(g) N2(g) + 3H2(g); ‰B wewKÌqvi H ‰i gvb KZ? K 92.2 kJ mol–1 L 90 kJ mol–1 M + 92.2 kJ mol–1 N + 90 kJ mol –1 10. chÆvq mviwYGZ 3p6 4s2 BGjKUÇb webÅvm wewkÓ¡ cigvYyi AeÕ©vb K kƒbÅ ˆkÉwY L VIII ˆkÉwY M IIA ˆkÉwY N IIB ˆkÉwY 11. ˆKvb ˆgŒj AwaK msLÅK ˆhŒM MVb KGi? K Kr L Ne M Ar N Xe 12. 2SO2 + O2 HooooooI 2SO3 wewKÌqvq Kc ‰i ‰KK ˆKvbwU? K L2 mol–2 L Lmol–1 M molL–1 N mol2 L–2 13. nÅvGjvGRbmgƒGni BGjKUÇb AvmwÚ KÌg nGjv K F > Cl > Br >I L Cl > F > Br > I M I > Br > F > Cl N I > Br > Cl > F 14. wbDwKÑqvGmi AwÕ¦Z½ cÉgvGYi cixÞvq eÅen†Z nq i. w«¼-abvñK PvRÆhyÚ KYv ii. ‰KwU ZnS cÉGjwcZ c`Æv iii. ‰KwU cvZjv ˆmvbvi cvGZi wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii DóxcKwU cGov ‰es 15 I 16 bs cÉGk²i Dîi `vI: 15mL 0.15 M AÅvwmwUK ‰wmW `ËeGY 6mL 0.15 M NaOH `ËeGY ˆhvM Kiv nGjv| ‰LvGb pKa = 4.76 15. DóxcGKi `ËeGYi pH nGe K 4.58 L 5.48 M 8.33 N 3.338 16. DóxcGKi WvUv nGZ wbGPi ˆKvb wm«¬vG¯¦ ˆcŒuQv hvq? K AÁÏxq cÉK‡wZi evdvi `ËeY L Þvixq cÉK‡wZi evdvi `ËeY M ‰Uv evdvi `ËeY bq N ‰wU cÉkg `ËeY 17. 36g cvwbGZ KZ ˆgvj cvwb ^vGK? K 3 ˆgvj L 2 ˆgvj M 6.02 1023 N 5 ˆgvj 18. ˆKvb `ËeGYi kwÚgvòv Zvcgvòvi Dci wbfÆi KGi bv? K bigvj `ËeY L ˆgvjvi `ËeY M ˆgvjvj `ËeY N ˆWwmGgvjvi `ËeY 19. ˆdwiK AÝvBGWi AÁÏZ½ KZ? K 2 L 3 M 4 N 6 20. wg^vBj ˆKÑvivBGW KveÆGbi ˆKvb aiGbi msKiY NGU? K sp L sp2 M sp3 N sp3 d 21. KvcGo ev Z½GK ˆgGn`x is dzGU DVvi RbÅ `vqx i. Z½K c†GÓ¤i RxweZ ˆKvl ii. Z½K c†GÓ¤i g†Z ˆKvl iii. KvcGoi ˆmjyGjvR wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 22. evbÆvGi Zvc ˆ`Iqvi mgq wbGPi ˆKvbwU ˆeGQ ˆbIqv nq? K weRviY wkLv L RviY wkLv M wiWÝ wkLv N Abyäj wkLv 23. Al2(SO4)3 ‰i Rjxq `ËeY i. AÁÏxq cÉK‡wZi ii. `ËeGYi pH < 7 iii. wbiGcÞ wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 24. H2S cÉÕ§wZGZ eÅen†Z nq K gvBGKÌv evbÆvi L ˆUÕ¡wUDe M wKch¯¨ N IqvUvi ev^ 25. Abygvcb cÉwKÌqvq eÅen†Z KvP mvgMÉx nGœQ i. weKvi ii. eyÅGiU iii. KwbKÅvj dÑvÕ• wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii Dîi 1 M 2 M 3 N 4 K 5 M 6 K 7 N 8 K 9 K 10 M 11 N 12 L 13 L 14 N 15 K 16 K 17 L 18 M 19 N 20 M 21 * 22 L 23 K 24 M 25 L * we.`Ë.: 21. mwVK Dîi nGjv ÷ay (ii)|

kxlÆÕ©vbxq KGjGRi cÉk² I Dîi: wbeÆvPwb cixÞv 2019 5 5. ˆgvnvÁÃ`cyi ˆK±`Êxq KGjR, XvKv imvqb : cÉ^g cò welq ˆKvW : 1 7 6 mgq– 25 wgwbU eüwbeÆvPwb AfxÞv gvb– 25 1. 12.4mL Na2CO3 ‰i `ËeY mwVKfvGe cwigvc KiGZ wbGPi ˆKvbwU eÅenvi Kiv nq? K wcGcU L eyÅGiU M KwbKÅvj dÑvÝ N AvqZwbK dÑvÝ 2. PbCl2 ‰i `ËveÅZv àYdj 1.7 10–5 nGj Pb2+ ‰i Nbgvòv KZ? K 1.62 10–2 molL–1 L 1.62 10–3 molL–1 M 1.62 10–4 molL–1 N1.62 10–5 molL–1 3. MvGQi cvZv I evKj ˆ^GK AÅvjKjGqW RvZxq Jla wbÓ•vkb Kiv nq ˆKvb c«¬wZGZ? K AvswkK cvZb L Ea»ÆcvZb M evÓ·cvZb N `ËveK wbÓ•vkb 4. DckwÚÕ¦i AiweUvj msLÅv KZ? K (2 + 1) L 2( + 1) M ( + 1) N (2 + 1) 5. ˆccvi ˆKÌvgvGUvMÉvwdGZ R ‰i ˆKvb gvbwU hywÚmsMZ? K 0.5 L 1.0 M 1.5 N 2.5 6. Bw^b AYyGZ KveÆb cigvYyi ˆKvb aiGbi nvBweËWvBGRkb we`Ågvb? K sp L sp2 M sp3 N sp3 d2 7. Zvcnvix wewKÌqvi ˆÞGò Zvcgvòv e†w«¬ KiGj mvgÅaË‚eGKi gvb K e†w«¬ cvq L nËvm cvq M wÕ©i ^vGK N kƒbÅ nq 8. 70 MÉvg mÁ·†Ú `ËeGY 20 MÉvg `Ëe `Ëexf„Z ^vKGj `ËveÅZv KZ? K 10 L 20 M 30 N 40 9. UvBGUÇkGb eÅen†Z nq i. eyÅGiU ii. wcGcU iii. KwbKÅvj dÑvÕ• wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 10. wbGPi ˆKvb AvqGbi ˆKvqvàGjkb ÞgZv ˆewk? K Na2+ L Mg2+ M Ca2+ N Al3+ 11. Rym msiÞGY ˆKvb wcÉRviGfwUf eÅenvi Kiv nq? K wfGbMvi L mvjdvi WvBAÝvBW M mvBwUÇK ‰wmW N ˆmvwWqvg ˆebGRvGqU 12. Lv`Å`ËeÅ bÓ¡ nIqvi cÉavb KviY i. AYyRxGei AvKÌgY ii. ivmvqwbK wKÌqv iii. ‰bRvBGgi cÉfve wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 13. ˆKvb jeGYi Rjxq `ËeY AÁÏxq? i. Na2SO4 ii. CuSO4 iii. FeCl3 wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 14. wbGPi ˆKvb ˆhŒGMi Mjbvâ meGPGq ˆewk? K BeCl2 L MgCl2 M CaCl2 N BaCl2 15. 0.625M NaOH `ËeGYi pH KZ? K 0.204 L 2.04 M 13.196 N 13.79 16. cvwbGZ ˆKvb ˆhŒGMi `ËveÅZv meGPGq Kg? K NaCl L MgCl2 M CaCl2 N AlCl3 17. ‰B wPn×wU «¼viv ˆKvb RvZxq c`v^ÆGK eySvGbv nGqGQ? K `vnÅ c`v^Æ L ˆZRwÕ˜q c`v^Æ M RviK c`v^Æ N weGÕ¹viK c`v^Æ 18. ˆKÌvgvGUvMÉvwd «¼viv i. bgybvi Dcv`vb c†^K Kiv hvq ii. bgybvi Dcv`vb kbvÚ Kiv hvq iii. bgybvi we÷«¬Zv cixÞv Kiv hvq wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 19. ˆKvb ˆhŒGMi AvqwbK ŠewkÓ¡Å mGeÆvœP K AlCl3 L SiCl4 M SiF4 N AlF3 20. SF6 AYyi AvK‡wZ K mij‹iwLK L wòfzR AvK‡wZ M PZzÕ¦jKxq N AÓ¡ZjKxq 21. Na2SO3 + Na3AsO3 + O2 Na2SO4 + Na3AsO4; ‰B wewKÌqvi ˆÞGò Na2SO3 ‰KwU K Õ¼-cÉfveK L AvweÓ¡ cÉfveK M FYvñK cÉfveK N cÉfveK mnvqK 22. wbGPi ˆKvbwU cÉÕ§wZGZ wÕ¡qvwiK ‰wmW eÅen†Z nq? K ˆÕ²v L UÅvjKg cvDWvi M ˆKvΣ wKÌg N wjcwÕ¡K 23. gΟ wfGbMvi cÉÕ§wZGZ myGKÌvGRi Av`ËÆ weGkÏlGY ˆKvb ‰bRvBg eÅen†Z nq? K WvqvGÕ¡R L gÅvjGUR M RvBGgR N BbfviGUR 24. wbGPi ˆKvb ˆgŒjwU wkLv cixÞvq eYÆ cÉ`kÆb KGi bv? K Cu L Fe M Sr N Ca 25. ˆKvb ˆhŒGMi ˆÞGò AÓ¡K mÁ·ÉmviY NGU bv? K PCl5 L SF6 M BeCl2 N ClF3 Dîi 1 L 2 K 3 N 4 K 5 K 6 L 7 K 8 N 9 N 10 M 11 N 12 N 13 L 14 N 15 N 16 N 17 L 18 N 19 N 20 N 21 L 22 K 23 N 24 M 25 M

6 cvGéix ‰BP‰mwm ˆgBW BwR: cÉk² I Dîi imvqb cÉ^g cò 5. ˆkiDW B´ŸvibÅvkbvj (cÉv.) Õ•zj ‰Åv´£ KGjR, eàov imvqb : cÉ^g cò welq ˆKvW : 1 7 6 mgq– 25 wgwbU eüwbeÆvPwb AfxÞv gvb– 25 DóxcKwU ˆ^GK 1 I 2 bs cÉGk²i Dîi `vI: ˆgŒj BGjKUÇb webÅvm Zwor FYvñKZv L ns2 M (n + 1)s1 X ns2 np4 2.5 Y ns2 np2 3.2 1. XY2 ˆhŒMwUi cÉK‡wZ K we÷«¬ mgGhvRx L ˆcvjvi mgGhvRx M AGcvjvi mgGhvRx N AvqwbK 2. LY2 AGcÞv MY2 ‰i i. Mjbvâ ˆewk ii. cvwbGZ `ËveÅZv ˆewk iii. mgGhvRx agÆ ˆewk wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 3. ‰KwU `ËeGY [H+ ] = 10–4 mol L–1 nGj pOH KZ? K 4 L 6 M 10 N 14 4. N2(g) + 3H2(g) HooooooI 2NH3(g); wewKÌqvwUi KP-‰i ‰KK Kx? K atm–2 L atm–1 M atm N atm2 DóxcKwU ˆ^GK 5 I 6 bs cÉGk²i Dîi `vI: AB+C wefekwÚ (KJ/mol) wPò : wewKÌqvi KÌg A+BC 100 90 80 70 60 50 40 30 20 10 5. wewKÌqvwUi mwKÌqb kwÚ KZ? K 70 kJ molL–1 L 50 kJ molL–1 M 10 kJ molL–1 N 60 kJ molL–1 6. i. wewKÌqvwU Zvc Drcv`x ii. wewKÌqvwU Zvc nvix iii. H = –10 kJ molL–1 wbGPi ˆKvbwU mwVK? K i I iii L ii I iii M i I ii N i, ii I iii 7. wbGPi ˆKvb ‰wmWwU ZxeË ‰wmW? K H2SO4 L HClO4 M HNO3 N H3PO4 8. gvQ, gvsm msiÞGY eÅen†Z wcÉRviGfwUf ˆKvbwU? K ˆmvwWqvg ˆebGRvGqU L ˆmvwWqvg bvBGUÇU M miweK ‰wmW N ˆcÉvcvGbvwqK ‰wmW 9. wbGPi ˆKvb AvqGbi ˆKvqvàGjkb ÞgZv ˆewk? K Al3+ L Ca2+ M Mg2+ N K+ 10. ˆgGn`xi is ‰i KviY ˆh ivmvqwbK `ËeÅ K jÅvGjvwbb L jGmvb M AwjK ‰wWm N DB´Ÿvi wMÉb 11. `yGai cÉavb ˆcÉvwUb nGjv K KÅvGivwUb L wjwcW M KÅvwmb N jÅvKUveywgb 12. i. KjGqW KYvi eÅvm nGj 10–7 – 10–5 cm ii. KjqGW wU´£vj cÉfve NGU iii. KjGqW KYvàGjv wdΟvi KvMGRi gaÅ w`Gq mnGRB ˆhGZ cvGi wbGPi ˆKvbwU mwVK? K i L i I iii M ii I iii N i, ii I iii 13. Õ·ÅvPzjv ˆKvb KvGR eÅen†Z nq? K AvqZb cwigvGc L fi cwigvGc M NbZ½ cwigvGc N Zvcgvòv cwigvGc 14. ˆKvb c`v^Æ KvGPi cvòGK Þq KGi? K Aqua-regia L H3PO4 M HF N Mvp HCl 15. ‰B msGKZ «¼viv Kx ˆevSvGbv nq? K ÞqKviK L ŠRe `ƒlK M ˆZRwÓ˜q N Še`yÅwZK SzuwK 16. ˆmwggvBGKÌv weGkÏlGY eÅen†Z H2S ‰i Drm ˆKvbwU? K CH3CSNH2 I H2O L Fes I H2SO4 M FeSO4 I jNy H2SO4 N H2NCSNH2 I H2O 17. ˆMvjZwjdÑvÝ «¼viv mÁ·v`b Kiv nq i. widÑvÝ ii. cvZb iii. cÉgvY `ËeY cÉÕ§wZ wbGPi ˆKvbwU mwVK? K i L ii M i I ii N i, ii I iii 18. 105 g mÁ·†Ú `ËeGY 30 g `Ëe `Ëexf„Z ^vKGj `ËveÅZv KZ nGe? K 30 L 40 M 75 N 100 DóxcKwU ˆ^GK 19 I 20 bs cÉGk²i Dîi `vI: ˆhŒM Õ¹zUbvâ weGqvRb Zvcgvòv A 90C 110C B 110C 90C C 120C 150C 19. AB wgkÉY ˆ^GK Dcv`vbàGjv c†^K KiGZ AbymiYxq c«¬wZ ˆKvbwU? K wbÁ²Pvc L evÓ·-cvZb M AvswkK cvZb N Da»ÆcvZb 20. AB wgkÉY AGcÞv AC wgkÉY mnGR c†^K Kiv hvq KviY i. A ‰es C ‰i Õ¹zUbvGâi cv^ÆKÅ ˆewk ii. B Õ¹zUbvGâi AvGM weGqvwRZ nq iii. A ‰es C ‰i c†^KxKiGY Ask Kjvg eÅenvi Kiv hvq wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 21. ˆKÌvgvGUvMÉvwdGZ wbGÁ²i AwaGkvlGYi mwKÌq KÌg nGjv K –CHO<–OH<–COOH<–NH2 L –CHO<–NH2<–COOH<–OH M –CHO<–NH2<–OH<–COOH N –OH<–NH2<–CHO<–COOH 22. evgvi wmwiGRi meÆwbÁ² Ziã‹`GNÆÅi RbÅ ˆKvbwU mwVK? K – = RH 4 L – = 4 RH M 1 – = RH 4 N 1 – = 4RH 23. wbGÁ²i BGjKUÇb webÅvGm ˆKvbwU cvigvYweK eÅvmvaÆ meGPGq ˆewk? K 1s2 2s1 L 1s2 2s2 2p2 M 1s2 2s2 1p1 N 1s2 2s2 24. [Cr(H2O)4Cl2] + RwUj AvqbwUGZ wbiGcÞ wjMÅv´£ msLÅv KZwU? K 6 L 4 M 2 N 0 25. [Ar]3d104s0 BGjKUÇb webÅvmwU nGjv i. Cu+ ii. Zn2+ iii. Fe2+ wbGPi ˆKvbwU mwVK? K i L ii M i I ii N i, ii I iii Dîi 1 M 2 K 3 M 4 K 5 L 6 K 7 L 8 L 9 K 10 L 11 M 12 N 13 L 14 M 15 N 16 K 17 L 18 L 19 M 20 K 21 M 22 K 23 K 24 L 25 M

kxlÆÕ©vbxq KGjGRi cÉk² I Dîi: wbeÆvPwb cixÞv 2019 7 7. KzwgÍÏv wkÞvGevWÆ miKvwi gGWj KGjR imvqb : cÉ^g cò welq ˆKvW : 1 7 6 mgq– 25 wgwbU eüwbeÆvPwb AfxÞv gvb– 25 1. ‰wmGWi Nbgvòv wbfÆi KGi i. weGqvRb aË‚eGKi Dci ii. ˆK±`Êxq cigvYyi AvKvGii Dci iii. `ËveGKi Dci wbGPi ˆKvbwU mwVK? K i L i I ii M i I iii N i, ii I iii 2. ‰w´ŸgvBGKÌvweqvj ˆKvbwU? K ˆebRGqU L BHT M EDTA N wPwb wbGPi DóxcKwU AvGjvGK 3 I 4 bs cÉGk²i Dîi `vI: MÉ‚c chÆvq VA VII 2 X A 3 Y B 3. X I Y ˆgŒj c†^K B ˆgŒGji mvG^ wewKÌqv KGi Drc®² ˆhŒM i. XB3, YB5 ii. XB5, YB3 iii. XB3, YB3 wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 4. ˆKvb ˆgŒGji Zwor FYvñKZv ˆewk? K X L Y M A N B 5. ˆccvi ˆKÌGgvGUvMÉvwdGZ Rf ‰i ˆKvb gvbwU hywÚmsMZ? K 0.5 L 1.0 M 1.5 N 2.5 6. c`vG^Æi Afů¦ixY kwÚ wbfÆi KGi i. c`vG^Æi MVb cÉK‡wZi Dci ii. PvGci Dci iii. Zvcgvòvi Dci wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 7. KgjvGjeyi pH 3.8 nGj H+ ‰i Nbgvòv K 1.89 10–4 M L 1.5 10–4 M M 2.15 10–3 M N 1.3 10–3 M 8. mçiYkxj BGjKUÇb AvGQ i. ˆmvwWqvg ii. MÉvdvBU iii. ˆebwRb wbGPi ˆKvbwU mwVK? K i L i I iii M ii I iii N i, ii I iii 9. nvBweËW AiweUvjmgƒn i. meÆ`v -e®¬b MVb KGi ii. meÆ`v -e®¬b MVb KGi iii. mgkwÚ mÁ·®² wbGPi ˆKvbwU mwVK? K i L i I iii M ii I iii N i, ii I iii 10. ZnSO4 ‰i Þvixq gƒjK kbvÚKiGY eÅen†Z nq i. K4[Fe(CN)6] ii. NaOH iii. K2H2Sb2O7 wbGPi ˆKvbwU mwVK? K i L i I ii M i I iii N i, ii I iii 11. wbGPi ˆKvbwUi eÅvmvaÆ meGPGq Kg? K F L Na+ M Mg2+ N Al3+ 12. nvBGWÈvGRb e®¬b MwVZ nq K CH4 L NH3 M H2S N H2O 13. 250 mL 0.1 M Na2CO3 `ËeGY Na2CO3 AvGQ K 3.25 g L 2.65 g M 1.06 g N 2.12 g 14. ˆKvb AÝvBWwU ˆewk AÁÏagÆx? K SiO2 L Cl2O7 M P2O5 N SO3 15. ˆWwmGgvjvi NaOH `ËeGYi pH KZ? K 12 L 7 M 13 N 1 16. wbGPi ˆKvbwU Av`ËÆ weGkÏwlZ nq? K NaCl L SiCl4 M C6H6 N CCl4 17. ˆgGn`xi is ‰i KviY ˆh ivmvqwbK c`v^Æ K jÅvGbvwjb L jGmvb M AwjK ‰wmW N DB´Ÿvi wMÉb 18. eÅvKGUwiqvi e†w«¬ Z½ivw®¼Z Kivi DcGhvMx Zvcgvòv KZ? K 40C L 55C M 70C N 65C 19. ˆKvb AiweUvGji kwÚ meÆvwaK? K 3p L 3d M 4s N 4p 20. ˆKvGbv wbw`ÆÓ¡ Zvcgvòvq A2B `ËveÅZv àYdj 410–9 mol3 L–3 nGj jeYwUi `ËveÅZv K 10–3 M L 10–4 M M 2 10–5 M N 4 10–3 M 21. pH KGg ˆMGj RwgGZ eÅenvi Kiv nq i. Pzb ii. WGjvgvBU iii. NaNO3 wbGPi ˆKvbwU mwVK? K i L i I ii M i I iii N i, ii I iii 22. 1mol C2H5OH ‰i cƒYÆ `nGb KZ ˆgvj CO2 Drc®² nq? K 1 mol L 2 mol M 3 mol N 4 mol 23. wkLv cixÞv ˆ`q bv i. Mg ii. Ba iii. Be wbGPi ˆKvbwU mwVK? K i L i I ii M i I iii N i, ii I iii 24. Al2O3 ‰i AÁÏZ½ KZ? K 2 L 3 M 4 N 6 25. wbGPi ˆKvb ˆhŒGMi Mjbvâ ˆewk? K CaCl2 L CaBr2 M CaF2 N CaI2 Dîi 1 N 2 K 3 L 4 M 5 K 6 N 7 L 8 N 9 L 10 K 11 N 12 N 13 L 14 L 15 M 16 L 17 L 18 K 19 N 20 K 21 L 22 L 23 M 24 N 25 M

8 cvGéix ‰BP‰mwm ˆgBW BwR: cÉk² I Dîi imvqb cÉ^g cò 8. miKvwi wc. wm. KGjR, evGMinvU imvqb : cÉ^g cò welq ˆKvW : 1 7 6 mgq– 25 wgwbU eüwbeÆvPwb AfxÞv gvb– 25 1. wbGPi ˆKvb ˆhŒMwU sp3 msKivwqZ bq? K H2O L NH3 M C2H4 N CH4 2. cvi AÝvBW Avqb ˆKvbwU? K O L O2– M O2 2– N O2 – 3. DfagÆ AÝvBW i. Na2O ii. ZnO iii. Al2O3 wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 4. mnKvix ˆKvqv´Ÿvg msLÅv (l) ‰i gvb KZ nGj f-AiweUvj mÁ¿e? K 2 L 3 M 4 N 5 DóxcKwU nGZ 5 I 6 bs cÉGk²i Dîi `vI: ˆgŒj ewntÕ© Õ¦Gii BGjKUÇb webÅvm P Q R S ns1 ns2 ns2 np1 ns2 np2 n = 3 5. DóxcGKi ˆKvb ˆgŒjwUi AvqwbKiY kwÚ meGPGq ˆewk? K P L Q M R N S 6. DóxcGKi ˆKvb ˆgŒGji ˆKÑvivBW WvBgvi MVb KGi? K S L Q M R N P 7. wbGPi ˆKvb ˆKvqv´Ÿvg msLÅvi ˆmUwU mwVK? K n = 1, l =1, m = 0, s =+ 1 2 L n = 1, l =0, m = 1, s =+ 1 2 M n = 2, l =1, m = 1, s =+ 1 2 N n = 2, l =2, m = +2, s =+ 1 2 Pn+ + NH4OH Q (ev`vgx AatGÞc) DóxcKwU AvGjvGK 8 I 9 bs cÉGk²i Dîi `vI: 8. Pn+ Avqb wbGPi ˆKvbwU? K Mn2+ L Fe2+ M Fe3+ N NH4 + 9. P ˆgŒjwU i. AeÕ©v¯¦i ˆgŒj ii. ˆdGivgÅvMGbwUK iii. ‰KwU AavZz wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 10. AvswkK cvZb cÉwKÌqvi RbÅ ZiGji gGaÅ Õ¹zUbvGâi bƒÅbZg cv^ÆKÅ ^vKv DwPZ? K 20C L 30C M 40C N 80C 11. nvBGWÈvGRb cigvYyi ‰KwU BGjKUÇb 3q kwÚÕ¦i ˆ^GK 2q kwÚÕ¦Gi ˆbGg AvmGj weKxYÆ kwÚi Ziã‹`NÆÅ KZ nGe? K 556 nm L 656 nm M 670 nm N 550 nm 12. SF6 ‰i ˆK±`Êxq cigvYyi msKivqb nGjv K sp3 d L sp3 M d3 sp3 N sp3 d2 13. ˆKvΣ wKÌGgi ˆKvb Dcv`vbwU Z½GKi Dä¾jZv e†w«¬GZ KvR KGi? K KwÕ¡K cUvk L ˆevivÝ M ˆgb^j N ˆnvqvBU IqvÝ 14. Fe2O3 ‰i AÁÏZ½ KZ? K 3 L 4 M 5 N 6 15. mwKÌq fi ejGZ ˆevSvq i. ˆgvjvi Nbgvòv ii. AvqZb iii. AvYweK fi wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii wbGÁ²i wewKÌqvwU weGePbv KGi 16 I 17 bs cÉGk²i Dîi `vI: PCl5 PCl3 + Cl2 16. wewKÌqvwU Kp ‰i ‰KK? K atm–1 L atm M atm–2 N atm2 17. DóxcGKi wewKÌqvq hw` PCl5 ˆhvM Kiv nq ZGe i. mvgÅveÕ©vi cwieZÆb NUGe ii. mvgGbi w`GK AMÉmi nGe iii. wewKÌqv cøvr w`GK AMÉmi nGe wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 18. ˆKvbwU ÷Ó•KviK wnGmGe KvR KGi? K Cl2O5 L N2O5 M P2O5 N V2O5 19. Ca3 (PO4)2 ‰i `ËveÅZvi àYdj KZ? K 100 S5 L 108 S5 M 104 S4 N 104 S5 20. wUwf wiGgvUv KG´ŸÈvGj ˆKvb aiGbi iwkÄ eÅenvi Kiv nq? K X-iwkÄ L AeGjvwnZ iwkÄ M gvBGKÌvIGqf N ˆiwWI IGqf 21. wmwjKb (Si) ˆgŒjwU i. MÉ‚c-IVA, chÆvq-3 ‰ AewÕ©Z ii. ‰KwU avZz iii. ‰KwU AcavZz wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 22. AwÝ ‰wmWmgƒGni kwÚi mwVK KÌg nGjv K HClO3 > H2SO4 > H2SO3 > HCIO L HNO3 > H2SO3 > HClO4 > H2SO4 M HClO > H2SO4 > H2SO3 > HNO3 N H2SO3 > H2SO4 > HClO4 > HClO 23. 1% NaOH `ËeGYi pH KZ? K 12.0 L 12.15 M 13.0 N 13.4 DóxcKwU AvGjvGK 24 I 25 bs cÉGk²i Dîi `vI: MÉ‚c chÆvq 2 16 1g A 2q X 3q Y 24. A2X ‰es A2Y ‰i ˆfŒZ AeÕ©vi wf®²Zvi KviY K mgGhvRx e®¬b L AvqwbK e®¬b M nvBGWÈvGRb e®¬b N mw®²Gek e®¬b 25. A2 X ‰es A2Y ˆhŒGMi ˆÞGò i. A2Y Zij c`v^Æ ii. A2X Zij c`v^Æ iii. A2X ‰i e®¬b ˆKvY 104.5; wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii Dîi 1 M 2 M 3 L 4 L 5 N 6 M 7 M 8 M 9 K 10 L 11 L 12 N 13 L 14 N 15 * 16 L 17 K 18 M 19 L 20 L 21 L 22 * 23 N 24 M 25 M * we.`Ë.: 15. mwVK Dîi nGjv ÷ay (i)| 22. mwVK Dîi nGjv HClO4 > H2SO4 > H2SO3 > HClO|

kxlÆÕ©vbxq KGjGRi cÉk² I Dîi: wbeÆvPwb cixÞv 2019 9 9. ˆbvqvLvjx miKvix KGjR imvqb : cÉ^g cò welq ˆKvW : 1 7 6 mgq– 25 wgwbU eüwbeÆvPwb AfxÞv gvb– 25 1. wbGÁ²vÚ AvqbàGjvi gGaÅ ˆKvbwUi AvKvi Þz`ËZg? K Na+ L F M Al3+ N O2 2. 64 28Ni, 64 29Cu ‰es 64 30Zn nGjv ciÕ·i K AvBGmvGUvc L AvBGmvgvi M AvBGmvevi N AvBGmvGUvb 3. ‰KwU 4s BGjUÇGbi n, l I m ‰i gvb K (4, 0, 0) L (4, 1, 0) M (4, 0, 1) N (4, 3, 1) 4. NH+ 4 AvqGbi e®¬b ˆKvY KZ? K 109.5 L 104.5 M 107.5 N 120 5. wbGPi ˆKvbwUGZ e®¬b we`Ågvb? K H2 L O2 M Cl2 N Br2 6. nvBGWÈvGRGbi cvigvYweK eYÆvjxi RbÅ eËvGKU wmwiGRi Z‡Zxq jvBGbi Ziã‹`NÆÅ ˆKvbwU? K 4.8627 10-6 m L 2.1656106 m M 5.1628 106 m N 4.8627107 m 7. wbGPi ˆKvbwUi RbÅ ˆevi Zî½ cÉGhvRÅ bq? K H L H+ M He+ N Li+2 8. [Cu(NH3)4]SO4 ˆhŒGM we`Ågvb i. AvqwbK e®¬b ii. mgGhvRx e®¬b iii. mw®²Gek e®¬b wbGPi ˆKvbwU mwVK? K i I ii L ii I iii M i I iii N i, ii I iii 9. 64g CH4 ˆK mÁ·ƒYÆi…Gc `nb KiGZ STP ˆZ KZ AvqZb AwÝGRb cÉGqvRb? K 179.2 L L 44.8L M 22.4L N 67.2L 10. logK Xvj = 70 K 1/ T ‰B ˆjL ˆ^GK mwKÌqb kwÚi gvb nGe K 1340.39 kJ L 1340.29 J M 581.98 kJ N 581.98 J 11. wbGÁ²i ˆKvb wewKÌqvàGjvi RbÅ Kp I Kc ‰i gvb mgvb? i. N2 + 3H2 HoooI 2NH3 ii. 2NO HoooI N2 + O2 iii. H2 + I2 HoooI 2HI wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 12. Lv`Å`ËeÅ cuPGbi KviY i. PweÆi DcwÕ©wZ ii. LvG`Åi RviY iii. avZe AvqGbi DcwÕ©wZ wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 13. `ËveK wnmvGe CHCl3 ‰i cwieGZÆ wbGÁ²i ˆKvb weKviKwU eÅenvi Kiv wbivc`? K CCl4 L C6H14 M C6H6 N C6H6(CH3)2 14. ˆgGn`xi iGOi RbÅ `vqx nGjv K 2-nvBWÈwÝ ˆebGRvKzBGbvb L ˆebGRvKzBGbvb M 2-nvBWÈwÝ -1, 4- bÅvc^v KzBGbvb N nvBGWÈGUÇW gÅvMGbwmqvg wmwjGKU 15. `~Ga ˆKvb WvBmÅvKvivBW ^vGK? K myGKÌvR L ˆmjyGjvR M gGΟvR N jÅvKGUvR 16. MÐvm wKÑbvGii gƒj Dcv`vb ˆKvbwU? K B^vbj L AvBGmvGcÉvcvBj AÅvjGKvnj M NaOH N AÅvGgvwbqv `ËeY 17. H3PO2 ‰i ÞviKZ½ KZ? K 1 L 2 M 3 N 4 18. ˆmw´ŸÈwdDR h¯¨ i. nÕ¦ PvwjZ ii. wdΟvi ˆccvGii cwieGZÆ eÅenvi Kiv nq iii. AatGÞcGK mnGR Avjv`v Kiv hvq wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 19. Al2(SO4)3 ‰i `ËveÅZv àYdj 1.5 105 nGj mÁ·†Ú `ËeGY SO2 4 ‰i Nbgvòv KZ? K 1.7 102 L 4.25 102 M 8.5 102 N 12.75 102 DóxcKwU cGov ‰es 20 I 21 bs cÉGk²i Dîi `vI: ˆgŒj BGjKUÇb webÅvm n ‰i gvb L ns1 n = 3 M ns2 Q nd10(n + 1)s1 R ns2 np5 L, M, Q, R ˆgŒGji cÉPwjZ cÉZxK bq| 20. DóxcGKi ˆKvb ˆgŒj K4[Fe(CN)6] «¼viv kbvÚ Kiv hvq? K L L M M Q N R 21. DóxcK gGZ i. Q AeÕ©v¯¦i ˆgŒj ii. LR AGcÞv MR2 cvwbGZ Kg `ËeYxq iii. QR AGcÞv LR ‰i Mjbvâ ˆewk wbGPi ˆKvbwU mwVK? K i I ii L i I iii M ii I iii N i, ii I iii 22. ˆKÌvgvGUvMÉvwdGZ AwaGkvlGYi mwVK KÌg nGjv K -COOH>-OH>-NH2>-CHO L -CHO>-COOH>-OH>-NH2 M -NH>-COOH>-CHO>-OH N -OH>-NH2>-CHO>-COOH 23. 250 mL 0.1 M Na2CO3 `ËeY cÉÕ§Z KiGZ KZ cwigvY Na2CO3 cÉGqvRb? K 2.65g L 10.6g M 26.5g N 160g 24. `ywU AÁÏxq `ËeGYi pH h^vKÌGg 3.0 ‰es 6.0| cÉ^g `ËeYwU w«¼ZxqwU AGcÞv KZàY AÁÏxq? K 50 L 100 M 1000 N 10,000 25. ˆKvb cÉvYxi `yGa ˆcÉvwUGbi cwigvY meGPGq ˆewk? K gvbyl L Mi‚ M gwnl N ˆfov Dîi 1 M 2 M 3 K 4 K 5 L 6 L 7 L 8 N 9 K 10 L 11 M 12 N 13 L 14 M 15 N 16 N 17 K 18 N 19 N 20 M 21 N 22 K 23 K 24 M 25 N

kxlÆÕ©vbxq KGjGRi cÉk²cò: wbeÆvPwb cixÞv 2019 1 kxlÆÕ©vbxq KGjGRi cÉk²cò: wbeÆvPwb cixÞv 2019 1. ˆeMg e`i‚G®²mv miKvwi gwnjv KGjR, XvKv imvqb: cÉ^g cò welq ˆKvW: 1 7 6 mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² gvb: 50 1. (i) CH3CSNH2(aq) + H2O(l) CH3CONH2(aq) + A (ii) B2+(aq) + A KvGjv AatGÞc + 2H+ (iii) B2+(aq) + AwZwiÚ Þvi `ËeY Mvp bxj `ËeY (C) K. bvBGUÇvGRb wdGÝkb ejGZ Kx eyS? 1 L. CO2 ‰i mw®¬ Zvcgvòv 31.1C ejGZ Kx eyS? eÅvLÅv Ki| 2 M. DóxcGKi wewKÌqvàGjv mÁ·®² Ki| 3 N. DóxcGKi 'C' ˆhŒGMi gGaÅ wK wK e®¬b we`Ågvb? e®¬b wPwn×Z KGi eÅvLÅv Ki| 4 2. OH + Zn A Mvp H2SO4 Mvp HNO3 CH3Cl ÷Ó• AlCl3 B C K. 32g AwÝGRGbi RbÅ fÅvb-WviIqvjm mgxKiYwU ˆjL| 1 L. `xwµ¦gq wkLv ‰es `xwµ¦nxb wkLvi gGaÅ cv^ÆKÅ ˆjL| 2 M. DóxcGKi A ‰es C ˆhŒGMi cviÕ·wiK cwieZÆb mgxKiYmn ˆjL| 3 N. DóxcGKi B ‰es C ˆhŒGMi gGaÅ ˆKvbwU BGjKUÇbvKlÆx cÉwZÕ©vcb wewKÌqvq AwaK mwKÌq? AbyibYmn weGkÏlY Ki| 4 3. 2.0 Q 1.0 O R (Av`kÆ MÅvm) PV 200 400 600 800 1000 P D (MÅvm) C (MÅvm) B (MÅvm) A (MÅvm) X K. wdÌqb114 ‰i MvVwbK msGKZ ˆjL| 1 L. MÅvGmi MZxq mgxKiY ˆ^GK eGqGji mƒò cÉwZcv`b Ki| 2 M. DóxcGKi QD ˆiLvwU ˆKvb kGZÆ QR ˆiLvi gGZv nq eÅvLÅv Ki| 3 N. ˆjLwPGò DwÍÏwLZ A, B ‰es C MÅvmàGjvi gGaÅ ˆKvbwUGK mnGR Zij Kiv mÁ¿e weGkÏlY Ki| 4 4. C4H10O A B C K. MRI ejGZ Kx eyS? 1 L. B^vBj AÅvwmGUvAÅvwmGUU ‰i UGUvgvwiZv ˆ`LvI| 2 M. DóxcGKi A, B ‰es C gGbvnvBwWÈK AÅvjGKvnj nGj ‰G`i gGaÅ cv^ÆKÅgƒjK wewKÌqv ˆ`LvI| 3 N. AÅvjKvBj nÅvjvBW ˆ^GK KxfvGe A, B ‰es C cÉÕ§Z Kiv hvq wewKÌqv ˆ`LvI| 4 5. A MÅvm 0.54g VA = 0.3dm3 PA = 760mm (Hg) B MÅvm 0.61g VB = 0.4dm3 PB = 770mm (Hg) (A ‰es B MÅvm `ywU ciÕ·i wewKÌqvnxb) K. ˆgw^GjGUW wÕ·wiU Kx? 1 L. mvBGKÑvGc´ŸvWvBbvBj AÅvbvqb ‰es mvBGKÑvGc´ŸvWvBbvBj KÅvUvqb AÅvGivGgwUK ˆhŒM wKbv eÅvLÅv Ki| 2 M. Pvwe ˆLvjv AeÕ©vq 30C Zvcgvòvq MÅvm wgkÉGYi ˆgvU Pvc wbYÆq Ki| 3 N. 25C Zvcgvòvq A ‰es B MÅvm `ywUi eÅvcb nvi Zzjbv Ki| 4 6. dvÕ¡Æ ‰BW eÝ + K. KÑÅv^GiU ˆhŒM Kx? 1 L. PH3 ‰es NH3 ‰G`i gGaÅ Kvi ÞviKZ½ ˆewk? ˆKb eÅvLÅv Ki| 2 M. DóxcGKi eÝwUGZ wK wK Dcv`vb ^vGK eYÆbv Ki| 3 N. DóxcGKi eÝmn jÅveGiUwiGZ we`Ågvb AbÅvbÅ wbivcîv mvgMÉx ‰es ‰G`i eÅenvi wewa DGÍÏL Ki| 4 7. cUvwkqvg ˆdGivmvqvbvBW T-1 MSO4 T-11 MSO4 T-111 MSO4 jvjGP ev`vgx AatGÞc nvjKv bxj AatGÞc mv`v AatGÞc K. AvqwbK àYdj Kx? 1 L. SN1 wewKÌqvi wKÌqvGKŒkj ˆjL| 2 M. DóxcGKi wewKÌqvàGjv mÁ·®² KGi ÞvixqgƒjKàGjv wPwn×Z Ki| 3 N. DóxcGKi jeYàGjvi AÁÏxqgƒjK kbvÚKiGY BaCl2 ‰es Ba(NO3)2 DfqB eÅenvi Kiv hvGe wK? weGkÏlY Ki| 4 8. ˆgŒj P Q R S ˆhvRÅZv Õ¦i ns2 p2 ns2 (n+1)s2 (n+1)p5 (n+1)s2 K. TDS Kx? 1 L. H2O ‰KwU DfagÆx ˆhŒM eÅvLÅv Ki| 2 M. DóxcGKi Q, R ‰es S, R «¼viv MwVZ ˆhŒGMi gGaÅ ˆKvbwUi Mjbvâ ˆewk? eÅvLÅv Ki| 3 N. P ‰es R ˆgŒGji «¼viv MwVZ ˆhŒGMi AvK‡wZ ˆKgb nGe? hywÚmn ˆjL| 4 kxlÆÕ©vbxq KGjGRi wbeÆvPwb cixÞvi Uc ˆMÉW cÉk²cò: m†Rbkxj iPbvgƒjK

2 cvGéix ‰BP‰mwm ˆgBW BwR: cÉk²cò imvqb cÉ^g cò 2. bÅvkbvj AvBwWqvj Õ•zj ‰´£ KGjR, wLjMuvI, XvKv imvqb: cÉ^g cò welq ˆKvW: 1 7 6 mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² gvb: 50 1. ˆgŒj ŠewkÓ¡Å A Zwor FYvñKZvi gvb 3.5 B 2q chÆvGq AewÕ©Z ‰es ‰i ˆhvRÅZv Õ¦Gi meÆvwaK msLÅK Ahy™Â BGjKUÇb we`Ågvb C chÆvq mviwYGZ A ˆgŒGji wVK WvbcvGk¼Æ AewÕ©Z K. g†rÞvi avZz KvGK eGj? 1 L. Mn ˆK AeÕ©v¯¦i ˆgŒj eGj ˆKb? 2 M. A, B I C ‰i nvBWÈvBWòGqi Õ¹zUbvGâi cÉK‡wZ eÅvLÅv Ki| 3 N. A I B c†^KfvGe H ‰i mvG^ ˆh mKj ˆhŒM ‰es Avqb MVb KGi ZvG`i e®¬b ˆKvGYi KÌg AvGjvPbv Ki| 4 2. ˆgŒj ev Avqb ˆgvU BGjKUÇb msLÅv P 1 Q+ 15 R+ 53 X 10 K. ˆbmjvi `ËeY KvGK eGj? 1 L. AlCl3 WvBgvi AYy MVb KGi ˆKb? 2 M. DóxcGK DwÍÏwLZ P ‰i ˆÞGò wewKiY eYÆvjxGZ IR AçGji ˆh mGeÆvœP kwÚ mÁ·®² wewKiY ŠZwi KGi Zvi Ziã‹`NÆÅ wbYÆq Ki| 3 N. QX4 ‰es RX4 AvK‡wZ ‰KB i…c nGe Kx? weGkÏlY Ki| 4 3. 500 mL 0.2M Cu2O `ËeY 200 mL 0.25M CaCl2 `ËeY 300 mL 0.4M HCl `ËeY Cu2Cl2‰i Ksp= 1.53105 M3 1 2 3 4 K. eYÆvjx Kx? 1 L. wkÞv cixÞvq Mvp HCl eÅenvi Kiv nq ˆKb? 2 M. 2 bs `ËeGYi `ËGei AÅvbvqGbi cwigvY wbYÆq Ki| 3 N. 1 I 3 bs `ËeY ‰KGò ˆhvM KiGj ˆKvb AatGÞc coGe wKbv? MvwYwZKfvGe weGkÏlY Ki| 4 4. (i) C2H6 + [O] A (AÅvjGKvnj) (ii) C6H12O6 RvBGgR A + 2CO2, ‰B wewKÌqvq CO2 Drcv`Gbi nvi nGjv 2.8 102 molL1 sec1 | K. cwiÓ•viK wgkÉY Kx? 1 L. we÷«¬ cvwbi pOH ‰i gvb '7' nq ˆKb? 2 M. DóxcGKi (ii) bs wewKÌqvwUGZ ™ÏyGKvR ‰i Nbgvòv nËvGmi nvi wbYÆq Ki|3 N. DóxcGKi ˆKvb wewKÌqvwU AwaK cwiGek ev®¬e weGkÏlY Ki| 4 5. (i) N2(g) + 3H2(g) A(g) (ii) CH3CH(OH)CH3 + [O] B + H2O (iii) NaOH + C Na2SO4 + H2O (iv) Cu2+(aq) + D Cu2[Fe(CN)6](s) + K+ (aq) K. ˆcvjvivqb Kx? 1 L. gÅvGKÌv I gvBGKÌv weGkÏlGYi gGaÅ Zzjbv Ki| 2 M. D ˆhŒGMi AÅvbvqb ‰i msKiY cÉwKÌqv eÅvLÅv Ki| 3 N. A, B, C I D ˆhŒMàGjvi AwZeÅenvi cwiGek I Õ¼vGÕ©Åi RbÅ Kx aiGbi ügwK m†wÓ¡ KGi? wekÏlY Ki| 4 6. 3 KveÆb wewkÓ¡ ‰Õ¡vi AÁÏxq Av`ËÆ weGkÏlY A + B (1 KveÆb wewkÓ¡ AÅvjGKvnj) N2(g) + 3H2(g) 2NH3(g) C K. ˆKvqvàGjkb Kx? 1 L. `ya ‰KwU Bgvjkb eÅvLÅv Ki| 2 M. C ˆhŒMwU ™Ïvm wKÑbvi ev UqGjU wKÑbvi ˆKvbwU cÉÕ§wZGZ eÅen†Z nq eÅvLÅv Ki| 3 N. A ˆhŒMwUGK KxfvGe Lv`Å msiÞK wnmvGe eÅenvi Kiv nq? weGkÏlY Ki| 4 7. SATP ˆZ 5.0 mol SO2 ‰es 3.0 mol O2 wewKÌqv KGi mvgÅveÕ©vq 25% SO3 Drc®² KGi| 2SO2(g) + O2(g) HooooooI 2SO3(g) + Zvc K. AvswkK cvZb Kx? 1 L. cvDwji eRÆb bxwZ gƒjZ wÕ·b ˆKvqv´Ÿvg msLÅvi Ici wbfÆikxj, Zv eÅvLÅv Ki| 2 M. DóxcGK DwÍÏwLZ wewKÌqvwUi ˆgvjvi mvgÅvâ MYbv Ki| 3 N. wewKÌqvwUi mvgÅveÕ©vq Zvcgvòv I PvGci cwieZÆb NUGj Drcv` ‰i Dci Kxi…c cÉfve ˆdjGe weGkÏlY Ki| 4 8. 250mL 0.25M ˆcÉvcvGbvwqK ‰wmW 300mL 0.2M NaOH `ËeY 40mL 0.15M H2SO4 `ËeY 1 2 3 K. Õ¡vKÆ cÉfve Kx? 1 L. Cr ‰i meÆGkl kwÚÕ¦Gii BGjKUÇGbi ˆKvqv´Ÿvg msLÅvmgƒGni gvb wbYÆq Ki| 2 M. 2 I 3 bs `ËeGYi wewKÌqvq Drc®² jeGYi e®¬b cÉK‡wZ eÅvLÅv Ki| 3 N. 1, 2 I 3 bs `ËeY ‰KGò wgwkÉZ KGi wgwkÉZ `ËeGY mvgvbÅ ZxeË ‰wmW ev ZxeË Þvi ˆhvM KiGj wgkÉGYi pH ‰i Kxi…c cwieZÆb nGe? weGkÏlY Ki| 4

kxlÆÕ©vbxq KGjGRi cÉk²cò: wbeÆvPwb cixÞv 2019 3 3. knx` iwgR Dwób KÅv´ŸbGg´Ÿ KGjR, XvKv imvqb: cÉ^g cò welq ˆKvW: 1 7 6 mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² gvb: 50 1. A B C K. Lv`Å wbivcîv Kx? 1 L. wkLv cixÞvq Mvp HCl eÅenvi Kiv nq ˆKb? 2 M. DóxcGKi C cÉZxK wewkÓ¡ ˆKvGbv cvGò iwÞZ c`vG^Æi cwiZÅvM ˆKŒkj eYÆbv Ki| 3 N. DóxcGKi wbG`ÆwkZ nÅvRvWÆ cÉZxKàGjvi gGaÅ SzuwKi ZzjbvgƒjK gvòv I mZKÆZv weGkÏlY Ki| 4 2. K + e A L M K. wmMgv e®¬b Kx? 1 L. Rvj ˆbvU/cvmGcvUÆ kbvÚKiGY UV iwkÄi eÅenvi ˆjGLv| 2 M. DóxcGKi gGWjwUi meÆewnÕ© kwÚÕ¦Gi mGeÆvœP KqwU BGjKUÇb ^vKGZ cvGi Zv ˆKvqv´Ÿvg msLÅvi mvnvGhÅ wnmve Ki| 3 N. gGWjwU nvBGWÈvGRb cigvYyi ˆÞGò cÉGhvRÅ nGj BGjUÇbwUi avcv¯¦Gii mgq wbMÆZ kwÚ ˆ^GK Ziã‹`NÆÅ wbYÆq Ki| 4 3. MN2-‰i AmÁ·†Ú `ËeY 15 mL 5 105 M cvò-A MN2 + XY cvò-B XY `ËeY 10 mL 0.1 M cvò-C 20C 20C 20C (i) MN2 ‰i `ËveÅZv 0.0002 mol L1 (ii) MY2 ‰i Ksp = 1.85 108 K. ivBWvi aË‚eK Kx? 1 L. KjGqGWi mywÕ©wZi KviY Kx? 2 M. A cvGòi jeYwUi `ËveÅZv àYdj wbYÆq Ki| 3 N. A I B ‰i `ËeY«¼qGK C cvGò wgwkÉZ KiGj ˆKvb AaGÞc cvIqv hvGe wKbv MvwYwZKfvGe weGkÏlY Ki| 4 4. J G I F D L K H C E B A 1g AvqwbKiY kwÚ (kJ mol–1) 2 4 6 8 10 12 cvigvYweK msLÅv K. R Kx? 1 L. ™Ïvm wKÑbvGi KwÕ¡K ˆmvWv eÅenvi Kiv nq bv ˆKb? 2 M. DóxcGKi D ‰i AÝvBGWi cÉK‡wZ eÅvLÅv Ki| 3 N. DóxcGKi C ˆ^GK ‘J’ ˆgŒjmgƒGni AvqwbKiY kwÚi gvGbi avivevwnKZvi ˆÞGò eÅwZKÌgmgƒn weGkÏlY Ki| 4 5. chÆvq ˆkÉwY 14 15 16 17 2q A B C X 3q M D Y K. Zwor FYvñKZv Kx? 1 L. mvgÅaË‚eK Kc ‰i gvb kƒbÅ A^ev Amxg nGZ cvGi bv ˆKb? 2 M. DóxcGKi C ‰es D ‰i nvBWÈvBGWi ˆfŒZ AeÕ©v wf®² DîGii cGÞ hywÚ `vI| 3 N. A, B ‰es C ˆgŒj wZbwUi mvG^ c†^KfvGe DóxcGKi Y ˆK hyÚ KiGj ˆh ˆhŒM wZbwU ŠZwi nq ˆmàGjv ‰KB msKiGYi gvaÅGg MwVZ nGjI AvK‡wZ wf®² wf®²-weGkÏlY Ki| 4 6. i. X2(g) + Y2(g) HooooooI 2XY(g) ii. A2(g) + 3B2(g) HooooooI 2AB3(g); H = Ve K. meyR imvqb Kx? 1 L. Na+ MwVZ nGjI Na2+ MwVZ nq bv ˆKb? 2 M. DóxcGKi (i) bs wewKÌqvwUi mvgÅ aË‚eGKi ivwkgvjv wbYÆq Ki| 3 N. DóxcGKi (ii) bs wewKÌqvwUGZ ˆewk cwigvY Drcv` ŠZwii ˆÞGò PvGci cÉfve MvwYwZKfvGe weGkÏlY Ki| 4 7. CH3COOH `ËeY 15 mL 0.25 M cvò-A KOH `ËeY 5 mL 0.25 M cvò-B Ka = 1.8 105 Dfq `ËeGYi wgkÉY cvò-C + K. wjMÅv´£ Kx? 1 L. AlCl3 WvBgvi MVb KGi eÅvLÅv Ki| 2 M. cvò-A `ËeGYi pH MYbv Ki| 3 N. C cvGòi `ËeGYi mvgvbÅ cwigvY HCl `ËeY ˆhvM KiGj H `ËeGYi pH gvGbi ˆKvGbv cwieZÆb NUGe Kx? MvwYwZKfvGe weGkÏlY Ki| 4 8. A(C12H22O11) + H2O B C + CO2 D RviY K. ˆcvjvivqb Kx? 1 L. `yeÆj ‰wmW I mej ÞvGii cÉkgb Zvc 57.34kJ nGZ Kg nq ˆKb?2 M. ‰bRvBgmn DóxcGKi wewKÌqvàGjv ˆjL| 3 N. DóxcGKi A I D ‰i Lv`Å`ËeÅ msiÞY ˆKŒkj ‰KB cÉK‡wZi wKbv weGkÏlY Ki| 4

4 cvGéix ‰BP‰mwm ˆgBW BwR: cÉk²cò imvqb cÉ^g cò 4. ‰m I ‰m nvigÅvb ˆgBbvi KGjR, XvKv imvqb: cÉ^g cò welq ˆKvW: 1 7 6 mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² gvb: 50 1. HCl, NH3, NaOH ivmvqwbK `ËeÅàGjv jÅveGiUwiGZ wewf®² KvGR eÅen†Z nq| K. mwKÌqY kwÚ Kx? 1 L. ˆmwggvBGKÌv c«¬wZ cwiGek ev®¬e eÅvLÅv Ki| 2 M. DóxcGKi DwÍÏwLZ ivmvqwbK ˆhŒMmgƒGni wbivc` msiÞY ˆKŒkj eYÆbv Ki| 3 N. DóxcGKi ivmvqwbK `ËeÅàGjvi AwaK eÅenvi cwiGek I gvbe mfÅZvi RbÅ ügwKÕ¼i…c weGkÏlY Ki| 4 2. 1A, 6B, 7D, 8G K. R Kx? 1 L. 2d mÁ¿e bq ˆKb? 2 M. DA3 ‰i mvG^ H + hyÚ ˆh ˆhŒM MwVZ nq Zvi e®¬b MVb cÉK‡wZ eYÆbv| 3 N. DA3 I A2G AYyi AvK‡wZ Kx ‰KB iKg ˆZvgvi DîGii Õ¼cGÞ hywÚ `vI| 4 3. ˆgŒj chÆvq ˆkËwY A 2q 14 B 3q 14 M 3q 17 K. evdvi `ËeY Kx? 1 L. Kc ‰i gvb Kx KLGbv kƒbÅ ev Amxg nGZ cvGi eÅvLÅv Ki| 2 M. M ˆgŒjwU AmvgémÅ wewKÌqv cÉ`kÆb KGi `ywU wewKÌqvmn eÅvLÅv Ki| 3 N. BM4 Av`ËÆweGkÏwlZ nq wK¯§ AM4 Av`ËÆ weGkÏwlZ nq bv ˆKb? ˆZvgvi DîGii Õ¼cGÞ hywÚ `vI| 4 4. X + n = 4 Y K. AeÕ©v¯¦i ˆgŒj Kx? 1 L. we÷«¬ NaCl ‰i ˆKjvm cÉwKÌqvq Mvp HCl ˆhvM Kiv nq ˆKb? 2 M. DóxcGKi X AGcÞv Y AwaK kwÚkvjx eÅvLÅv Ki| 3 N. DóxcGKi X ‰es Y ‰i gGaÅ ˆKvbwU «¼viv Rvj cvmGcvUÆ kbvÚ Kiv hvGe ˆZvgvi DîGii Õ¼cGÞ hywÚ `vI| 4 5. (i) CS2(s) + 3O2 CO2 + 2SO2; H = 1109 kJ (ii) SO2 + O2 SO2 ; H = 297.39 kJ; (iii) C(s) + O2 CO2 ; H = 393.84 kJ; (iv) C(s) + 1 /2O2 CO(g); H = 283.0 kJ K. cÉfveK mnvqK Kx? 1 L. mvaviY AeÕ©vq Na+ MwVZ nGjI Na2+ nq bv ˆKb? 2 M. DóxcGKi AvGjvGK CS2 ‰i msMVb Zvc wbYÆq Ki| 3 N. DóxcGKi (iii) I (iv) bs wewKÌqvi mvnvGhÅ ˆnGmi mƒòwU KxfvGe cÉgvY KiGe ˆZvgvi DîGii Õ¼cGÞ hywÚ `vI| 4 6. 25C 400mL; 6 103 M NH4OH `ËeY 25C 900mL; 6 103 M AlF3 `ËeY A-cvò B-cvò 25C ‰ Al(OH)3 ‰i Ksp = 4 1011 mol4 L4 K. nÅvRvWÆ cÉZxK Kx? 1 L. N cigvYyi ˆkGli PviwU BGjKUÇGbi ˆKvqv´Ÿvg msLÅv ˆmU wbYÆq Ki|2 M. A cvGòi abvñK ˆhŒMgƒjKwU kbvÚKiY cixÞv mgxKiYmn ˆ`LvI|3 N. A I B cvGòi `ËeY wgwkÉZ KiGj Al(OH)3 ‰i AatGÞc coGe wKbv? MvwYwZKfvGe weGkÏlY Ki| 4 7. wbGPi wPòwU jÞ Ki ‰es cÉk²àGjvi Dîi `vI: 1200mL 0.15 M HCOOH `ËeY 500 mL 0.17M, NaOH `ËeY wPò-1 wPò-2 pka = 4.74 K. wKÑwbs wgkÉY Kx? 1 L. mvgÅveÕ©v meÆ`v MwZkxj ˆKb? 2 M. wPò-1 I wPò-2 ‰i wgwkÉZ `ËeGYi pH MYbv Ki| 3 N. wPò-1 I wPò-2 ‰i wgwkÉZ `ËeGY mvgvbÅ H2SO4 ev NaOH ˆhvM KiGj pH ‰i ˆKvGbv cwieZÆb nGe Kx? ˆZvgvi DîGii Õ¼cGÞ hywÚ `vI| 4 8. A(C12H22O11)+H2O BbfviGUR B RvBGgR C + CO2 gvBGKvWvgÆv ‰wmwU eÅvÙi RviY D K. Lv`Å wbivcîv Kx? 1 L. MÐvm wKÑbvGi NaOH ‰i cwieGZÆ NH3 eÅenvi Kiv nq ˆKb? 2 M. DóxcGKi cÉwKÌqvwU wewKÌqvmn ˆjL| 3 N. DóxcGKi B I D ‰i Lv`Å msiÞY ˆKŒkj ‰KB cÉK‡wZi wKbv ˆZvgvi DîGii Õ¼cGÞ hywÚ `vI| 4

kxlÆÕ©vbxq KGjGRi cÉk²cò: wbeÆvPwb cixÞv 2019 5 5. bvivqYMé KGjR imvqb: cÉ^g cò welq ˆKvW: 1 7 6 mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² gvb: 50 1. cvò-A cvò-B cvò-C cvò-D H2SO4 250cm3 K. dvÕ¡ ‰BW eÝ Kx? 1 L. jÅveGiUwiGZ wbivc` Pkgv eÅenvi Kiv nq ˆKb? 2 M. A cvGò we`Ågvb H2SO4 ‰i cwigvY wbYÆq Ki| 3 N. DóxcGK DwÍÏwLZ A, B, C h¯¨àGjv ˆKvb aiGbi h¯¨ ‰es ‰G`i eÅenvi ˆjL| 4 2. ZnSO4 6 10–4 M 50 mL cvò-A cvò-B A + B wgkÉY K. AiweUvj Kx? 1 L. wkLv cwiÞvq HCl eÅenvi Kiv nq ˆKb? 2 M. A cvGòi ˆhŒGMi `ËveÅZv àYdj wbYÆq Ki| 3 N. A cvò ‰es B cvGòi `ËeY `ywUGZ ‰KGò wgwkÉZ Kiv nGj ˆKvGbv AatGÞc m†wÓ¡i mÁ¿vebv AvGQ wKbv weGkÏlY Ki| 4 3. e K L M + K. R Kx? 1 L. 2d AiweUvj mÁ¿e wKbv? eÅvLÅv Ki| 2 M. DóxcGKi AvGjvGK cigvYyi MVb mÁ·wKÆZ gGWjwU AvGjvPbv Ki| 3 N. DóxcGKi gGWjwU hw` nvBGWÈvGRb cigvYy nq ZvnGj BGjKUÇbwUi avcv¯¦Gi ˆkvwlZ kwÚ wnmve KGi Zvi KÁ·vâ wbYÆq Ki| 4 4. J G I F D L K H C E B A 1g AvqwbKiY kwÚ (kJ mol–1) 2 4 6 8 10 12 cvigvYweK msLÅv K. nvBGWÈvGRb e®¬b Kx? 1 L. NH3 ‰KwU wjMÅv´£ eÅvLÅv Ki| 2 M. DóxcGKi F ‰i AÝvBGWi cÉK‡wZ eÅvLÅv Ki| 3 N. DóxcGKi C ˆ^GK J ˆgŒjmgƒGni AvqwbKiY kwÚi gvGbi avivevwnKZvi ˆÞGò eÅwZKÌgmgƒn weGkÏlY Ki| 4 5. HA + H2O HooooooI H3O+ + A K. Zwor FYvñKZv Kx? 1 L. Kc ‰i gvb kƒbÅ nGZ cvGi wK? eÅvLÅv Ki| 2 M. 0.1 M gvòvi HA `ËeGYi pH wnmve KGiv| 3 N. DóxcGK DwÍÏwLZ ‰wmWwUi ‰KwU evdvi `ËeY ŠZwi KGi ‰i evdvi wKÌqvGKŒkj ˆ`LvI| 4 6. UGgGUv ˆLRyGii im 1bs wPò 2bs wPò K. ˆcvjvwiwU Kx? 1 L. MÐvm wKÑbvGi KwÕ¡K ˆmvWv eÅenvi Kiv nq bv ˆKb? 2 M. 1bs wPGòi ˆ`kxq dGji ˆKŒUvRvZKiY eYÆbv Ki| 3 N. 2bs wPGòi Dcv`vb ˆ^GK wfGbMvi cÉÕ§Z Kiv hvq wKbv hywÚ `vI| 4 7. PviwU ˆgŒGji ˆhvRÅZv Õ¦Gii BGjKUÇb webÅvm wbGP ˆ`Iqv nGjv: ˆgŒj P Q R S ˆhvRÅZv Õ¦i ns2 np2 ns2 (n + 1)s2 (n + 1)p3 (n + 1)s2 ‰LvGb n = 2 K. cÉfveK wel Kx? 1 L. ivmvqwbK mvgÅveÕ©v MwZkxj@ eÅvLÅv Ki| 2 M. Q, R ‰es S, R «¼viv MwVZ ˆhŒGMi gGaÅ ˆKvbwUi Mjbvâ ˆewk eÅvLÅv KGiv| 3 N. P ‰es R ˆgŒj «¼viv MwVZ ˆhŒGMi gGaÅ ˆKvb msKivqb AvGQ| Zv wPGòi gvaÅGg ˆ`LvI| 4 8. C(s) CO2(s) CO(g) O2(g) 1 2 O2(g) H5 = 110.54kJ H = 282.96kJ 1 2 O2(g) K. ˆKvqvàGjkb Kx? 1 L. Lv`Å wbivcîvq imvqGbi f„wgKv eÅvLÅv Ki| 2 M. DóxcGK cÉ`î WvUv ˆ^GK CO2 Drcv`Gb H ‰i gvb wnmve KGiv| 3 N. “ˆnGmi mƒò kwÚi AwebvwkZvev` mƒGòi wf®²i…c” DóxcGKi AvGjvGK gƒjÅvqb Ki| 4 100 mL 0.1 M

6 cvGéix ‰BP‰mwm ˆgBW BwR: cÉk²cò imvqb cÉ^g cò 190. miKvwi wc. wm. KGjR, evGMinvU imvqb: cÉ^g cò welq ˆKvW: 1 7 6 mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² gvb: 50 1. AB 6 10–4 M 50mL cvò-1 MN 0.06M 40mL cvò-2 AN2 ‰i Ksp = 1 10–17 (25C) K. mg-Avqb cÉfve Kx? 1 L. Rvj UvKv kbvÚKiGY UV iwkÄ eÅenvi Kiv nq ˆKb? 2 M. cvò-1 I cvò-2 ‰i wgwkÉZ `ËeGY [M+ ] ‰i Nbgvòv wbYÆq Ki| 3 N. cvò-1 I cvò-2 ‰i wgkÉGY AN2 AatwÞµ¦ nGe wK-bv MvwYwZKfvGe weGkÏlY Ki| 4 2. wbGÁ²i BGjKUÇb webÅvmwU jÞ Ki: A [Ar](n-1) d10ns2 ; ‰LvGb A cÉPwjZ A^Æenb KGi bv| K. eYÆvjx Kx? 1 L. iGÚi evdvi wKÌqv eÅvLÅv Ki| 2 M. A2+ Avqb kbvÚKiY cixÞvwU wewKÌqvmn ˆjL| 3 N. [A(NH3)4] 2+ ‰i eGYÆi cÉK‡wZ weGkÏlY Ki| 4 3. 70C 25g XY ‰i mÁ·†Ú `ËeY wPò-1 kxZjxKviK 25C 25g `ËeY ˆKjvwmZ XY wPò-2 K. ˆKvqvàGjkb Kx? 1 L. wkLv cixÞvq Mvp HCl eÅenvi Kiv nq ˆKb? 2 M. DóxcGKi wPò-2 ‰ ˆKjvwmZ XY ‰i cwigvY KZ nGe? 3 N. hw` wPò-2 ‰i `ËeGY X2Y ˆhvM Kiv nq nGe XY cÉvwµ¦i mÁ¿veÅZv weGkÏlY Ki| 4 4. A, B, C ˆgŒj«¼Gqi cvigvYweK msLÅv h^vKÌGg 9, 10, 17| K. cÅvivGPŒÁ¼K c`v^Æ Kx? 1 L. NH3 AYyi AvK‡wZ wcivwgWxq ˆKb? 2 M. BA6 mÁ¿e wK¯§ BC6 mÁ¿e bq ˆKb eÅvLÅv Ki| 3 N. HA ‰es HC ‰i gGaÅ ˆKvbwUi Õ¹zUbvâ ˆewk nGe? ‰i Õ¼cGÞ hywÚ `vI| 4 5. N2O4(g) XoooooI NO2(g) 25C Zvcgvòvq ‰es 1 atm 18% N2O4 weGhvwRZ nq| K. ˆnGmi mƒòwU ˆjL| 1 L. Al2O3 ‰KwU DfagÆx AÝvBW eÅvLÅv Ki| 2 M. DóxcGKi wewKqvwUi Kp ‰i gvb wbYÆq Ki| 3 N. ˆ`LvI ˆh, DóxcGKi wewKÌqvwUGZ Zvc e†w«¬i mvG^ mvG^ weGhvRb gvòv nËvm cvGe| 4 6. wgwg gvLb ˆLGZ cQ±` KGi| Zvi gv evmvq gvLb cÉÕ§Z KGi| Zvi gv gvLb ˆ^GK AvGiv ‰gb ‰KwU eÕ§ ŠZwi KGi hv iv®²v Kiv LvevGi wf®² Õ¼v` ‰Gb ˆ`q ‰es ‰GK KÞ Zvcgvòvq `xNÆw`b msiÞY Kiv hvq| K. ˆKvqv´Ÿvg msLÅv Kx? 1 L. ˆmGK´£vwi Õ¡Åv´£vWÆ c`v^Æ ejGZ wK ˆevS? 2 M. wgwgi gv evmvq KxfvGe gvLb ŠZwi KGib eYÆbv Ki| 3 N. DóxcGKi ˆkGlvÚ eÕ§wU gvLb AGcÞv AwaK wÕ©wZkxj weGkÏlY Ki| 4 7. X I Y `ywU R¾vjvwb hvG`i mvaviY msGKZ CnH2n+2 ‰es X, Y ‰K ‰es `yB KveÆb wewkÓ¡| X(g), Y(g), CO2(g) ‰es H2O(g) ‰i cÉgvY MVb ‰b^vjwc h^vKÌGg 78.89, 84.52, 393.30 ‰es 220.20 kJmol–1 | K. wMÉb ˆKwgwÕ¡È ejGZ wK ˆevS? 1 L. `ya ‰KwU KjGqW eÅvLÅv Ki| 2 M. X ‰i `nb ‰b^vjwc hw` 490 kJ/mol nq ZGe 1335.45 kJ Zvc Drcv`Gbi RbÅ wK cwigvY AwÝGRb jvMGe? 3 N. R¾vjvwb wnGmGe X I Y ‰i gGaÅ ˆKvbwU Dîg MvwYwZKfvGe weGkÏlY Ki| 4 8. NH3 A H2SO4 B K. ˆgvjvwiwU Kx? 1 L. PCl5 MwVZ nq wK¯§ NCl5 MwVZ nq bv ˆKb? 2 M. DwÍÏwLZ ivmvqwbK c`v^ÆàGjv jÅveGiUwiGZ KxfvGe msiÞY Kiv nq eYÆbv Ki| 3 N. Õ¼vÕ©Å I cwiGeGki Dci DwÍÏwLZ Dcv`vbmgƒGni ÞwZKi cÉfve cwijwÞZ nq weGkÏlY Ki| 4 OH C

kxlÆÕ©vbxq KGjGRi cÉk²cò: wbeÆvPwb cixÞv 2019 7 8. ev±`ievb miKvwi KGjR, ev±`ievb imvqb: cÉ^g cò welq ˆKvW: 1 7 6 mgq-2 N¥Ÿv 35 wgwbU m†Rbkxj cÉk² gvb: 50 1. wbGPi DóxcK jÞ Ki ‰es cÉk²àGjvi Dîi `vI: Na H2SO4 NH4OH CHCl3 K. `ËveÅZv Kx? 1 L. wkLv cixÞvq Mvp HCl eÅenvi Kiv nq ˆKb? 2 M. DóxcGKi Dcv`vbmgƒGni wbivc` msiÞY ˆKŒkj eYÆbv Ki| 3 N. DóxcGKi ˆhŒMmgƒGni AcwiwgZ eÅenvi gvbe Õ¼vÕ©Å ‰es cwiGeGki RbÅ ügwKÕ¼i…c wKbv? weGkÏlY Ki| 4 2. wbGPi DóxcKwU jÞ Ki ‰es cÉk²àGjvi Dîi `vI: K. cÉgvY `ËeY Kx? 1 L. "NH3 ‰KwU wjMÅv´£” eÅvLÅv Ki| 2 M. DóxcK I ‰i n = 3 ewntÕ¦ Õ¦Gii l I m ‰i gvb wnmve KGi AiweUvj msLÅv wbYÆq Ki| 3 N. DóxcK I I II ‰i cigvYy gGWj«¼Gqi Zzjbv Ki| 4 3. wbGPi DóxcKwU jÞ Ki ‰es cÉk²àGjvi Dîi `vI: 2q chÆvGqi ˆgŒj cvigvYweK msLÅv 3 4 5 6 7 8 9 AvqbxKiY kwÚ kJ/mol 520 900 800 1086 1403 1314 1680 K. Fe++(26) I Cu(29) ‰i BGjKUÇb webÅvm ˆjL| 1 L. wfGbMvi KxfvGe eÅvKGUwiqv a»sm KGi? 2 M. DóxcGK DwÍÏwLZ cvigvYweK msLÅvwewkÓ¡ ˆgŒjmgƒGni gGaÅ ˆKvb ˆgŒGji Zwor FYvñKZvi gvb chÆvq mviwYGZ meÆvwaK eÅvLÅv Ki| 3 N. DóxcGK DwÍÏwLZ cvigvYweK msLÅvwewkÓ¡ ˆgŒjmgƒGni AvqbxKiY wefGei KÌg cwieZÆb hywÚmn eÅvLÅv Ki| 4 4. wbGPi DóxcKwU jÞ Ki ‰es cÉk²àGjvi Dîi `vI: (i) CuSO4(aq) + NH4OH (excess) A (Mvp bxj `ËeY) + H2O (ii) NH3(g) + HCl B (mv`v ˆauvqv)| K. wfGbMvi Kx? 1 L. `ËveÅZv àYdGji Dci mgAvqb cÉfve eÅvLÅv Ki| 2 M. 'A' ˆhŒMwU iwOb nIqvi KviY eÅvLÅv Ki| 3 N. 'A' ˆhŒGMi wjMÅv´£ ‰es 'B' ˆhŒGMi ÞviKxq gƒjGKi gGaÅ AvK‡wZGZ cv^ÆKÅ ˆ`Lv hvq KviYmn weGkÏlY Ki| 4 5. wbGPi DóxcKwU jÞ Ki ‰es cÉk²àGjvi Dîi `vI: K. AiweUvj Kx? 1 L. "HCl ‰KwU ˆcvjvi ˆhŒM” eÅvLÅv Ki| 2 M. 'A' ‰es 'B' cvGòi `ËeY ‰KGò wgwkÉZ KiGj cÉkgb ZvGci gvb aË‚eK (57.34kJ) AGcÞv Kg nGe eÅvLÅv Ki| 3 N. 'C' cvGò A͸ cwigvY HCl ˆhŒM KiGj ‰i `ËeGYi pH ‰i ˆKvb cwieZÆb nGe wKbv weGkÏlY Ki| 4 6. wbGPi DóxcKwU jÞ Ki ‰es cÉk²àGjvi Dîi `vI: PCl5(g) HooooooI PCl3(g) + Cl2(g); H = +Ve PCl5 wewKÌqvwU 30C Zvcgvòvq 1.5 atm PvGc 15% weGqvwRZ nq| K. 'Like dissolves like' bxwZwU Kx? 1 L. HNO3 I H3PO4 ‰i gGaÅ ˆKvbwU kwÚkvjx ‰wmW? eÅvLÅv Ki| 2 M. DóxcGKi wewKÌqGKi weGqvRb gvòv '' nGj Kp ‰i ivwkgvjv wbYÆq Ki, hLb ˆgvU Pvc 'P'| 3 N. mvgÅveÕ©vq wewKÌqvwUGZ Zvc I PvGci cwieZÆb NUGj DrcvG`i cwigvGYi cwieZÆb NUGe wKbv? weGkÏlY Ki| 4 7. wbGPi DóxcKwU jÞ Ki ‰es cÉk²àGjvi Dîi `vI: H H H H O O O O H H O O H H H H H H K. cvwbi AvqwbK àYdj Kx? 1 L. AwÝGRGbi Zzjbvq bvBGUÇvRGbi 1g AvqbxKiY wefe ˆewk ˆKb? 2 M. DóxcGKi ˆhŒMwU cvwbGZ fvmvi KviY eÅvLÅv Ki| 3 N. DóxcGKi ˆhŒMwUGZ we`Ågvb ˆKvb weGkl KviGYi RbÅ mvaviY AeÕ©vq H2O Zij wK¯§ H2S MÅvmxq KviYmn weGkÏlY Ki| 4 8. wbGPi DóxcKwU jÞ Ki ‰es cÉk²àGjvi Dîi `vI: euvGki KuwP ˆKvivj msMÉn ˆLvmv gyÚKiY eÐvwçs wKDwis KÅvwbs K. cÉvBgvwi Õ¡Åv´£vWÆ c`v^Æ Kx? 1 L. Zn wK AeÕ©v¯¦i ˆgŒj? eÅvLÅv Ki| 2 M. DóxcGKi AvGjvGK Lv`ÅeÕ§i ˆKŒUvRvZKiY c«¬wZ eYÆbv Ki| 3 N. DóxcGKi eÅen†Z eÐvwçs I KÅvwbs ‰i ài‚Z½ weGkÏlY Ki| 4