wb‡Pi †KvbwU‡Z f¨vbWvi Iqvjm ej me©vwaK

welq †KvW 1 7 6 we G Gd kvnxb K‡jR XvKv

wbe©vPwb cixÿv2017 Øv`k †kªwY

welq t imvqb 1g cÎ (eûwbe©vPwb)

mgq t 25 wgwbU c~Y©gvb25

[ we‡kl `ªóe¨ t mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Îi cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m¤^wjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ejc‡q›U Kjg Øviv m¤ú~Y© fivU Ki| cÖwZwU cÖ‡kœi gvb-1 ]

1. wb‡Pi †KvbwU‡Z f¨vbWvi Iqvjm ej me©vwaK?

I2 Cl2 F2 Br2

2. †KvbwU c¨vivg¨vM‡bwUK?

Cu Zn Ca Mg

3. K4[Fe(CN)6] G Fe Gi msKiY †KvbwU?

d²sp³ sp³d² d²sp² sp³d 4. HF I NaOH Gi cÖkgb Zv‡ci gvb KZ?

68.6 KJ 57.3 KJ

55.2 KJ 11.3 KJ 5. wb‡Pi †Kvb wewµqvwUi Kp Gi GKK atm²?

2HI H2 + I2

2NO2 N2O4

2NH3 N2 + 3H2

N2 + 3H2 2NH3

6. †KvbwU Uq‡jU wK¬bv‡ii cÖavb Dcv`vb?

A¨v‡gvwbqv Kw÷K †mvWv

w¯úwiU jeY

7. †KvbwU‡Z Zvc †`Iqvi Rb¨ Zvi Rvwj e¨envi nq bv?

U÷wUDe KwbK¨vj d¬v·

weKvi cv‡m©wjb evwU

8. †c‡Uªvwjqvg we‡kvab Kiv nq †Kvb cÖwµqvq?

cvZb AvswkK cvZb

Kjvmb Da٩ cvZb

9. †KvbwUi †ÿ‡Î †ev‡ii ZË¡ cÖ‡hvR¨ bq?

H H⁺ He⁺ li²⁺

10. †µvwgK Gwm‡Wi mvnv‡h¨ KuvPcvÎ cwi¯‹v‡ii mgq †Kvb ai‡bi wewµqv N‡U?

RviY weRviY cÖkgb cÖwZ¯’vcb

11. †mwggvB‡µv-A¨vbvwjwUK¨vj c×wZ‡Z e¨eüZ c`v‡_©i cwigvY n‡jv

0.51.0 g 0.05  0.1 g 0.005  0.01 g 10  50 g 12. †KvbwU cÖvK…wZK Lv`¨ msiÿK?

wf‡bMvi digvwjb

Lv`¨ jeY mvjdvi WvBA·vBW

13. U¨vjK Kx?

mvwWqvg wmwj‡KU cUvwkqvg wmwj‡KU g¨vM‡bwkqvg wmwj‡KU A¨vjywgwbqvg wmwj‡KU

14. hw` B‡jKUªb Amxg †_‡K 3q †k‡j ¯’vbvšÍwiZ nq Z‡e †Kvb wmwiR ˆZwi nq?

c¨v‡ðb evgvi dzÛ eªv‡KU

15. †gŠ‡ji B‡jKUªb Avmw³ n«vm cvq

i. cigvYyi AvKvi e„wׇZ ii. wbDwK¬qv‡mi PvR© e„wׇZ iii. ewn¯’ ¯Í‡i B‡jKUªb NbZ¡ e„wׇZ

wb‡Pi †KvbwU mwVK?

i I ii ii I iii i I iii i, ii I iii 16. 1 †gvj B_vb‡ji c~Y© `n‡b KZ †gvj CO2 ˆZwi nq?

1 †gvj 2 †gvj 3 †gvj 4 †gvj 17. †Kvb Dc¯Í‡i m‡e©v”P B‡jKUªb aviY ÿgZv n‡jv

(2l + 1) (l + 1) 2(2l + 1) 2(l + 2)

18. 25C ZvcgvÎvq AB2 Gi ksp = 7.410^-11 n‡j Gi `ªve¨Zv KZ?

2.6 10^-3 molL^-1 2.610^-2 molL^-1 2.610^-4 molL^-1 2.610^-5molL^-1 19. †Kvb Avqb iwOb nq?

i. ewn¯’ ¯Í‡ii B‡jKUªb ¯’vbvšÍwiZ n‡j ii. ewn¯’ ¯Í‡i Ac~Y© d Awe©Uvj _vK‡j

iii. B‡jKUªb web¨vm ns²np⁶ n‡j wb‡Pi †KvbwU mwVK?

i I ii ii I iii i I iii i, ii I iii

20. †Kvb `ªe‡Y OH^- Gi NbgvÎv 3.510^-4 molL^-1 n‡j pH KZ?

3.55 13.55 12.55 1.355

21. A + 3B 2C wewµqvi Kc Gi GKK wK?

mol/L mol²/L² L/mol L²/mol² 22. gvbe i‡³ †Kvb evdvi `ªeY we`¨gvb?

NaHCO3 + H2CO3

NH4Cl + NH4OH Na2HPO4 + H3PO4

CH3COOH + CH3COONa 23. †Kvb †gŠj¸wj `xc wkLvq eY©nxb?

i. Mg ii. Ca

iii. Zn

wb‡Pi †KvbwU mwVK?

i I ii ii I iii i I iii i, ii I iii DÏxcKwU jÿ Ki Ges 24 I 25 bs cÖ‡kœi DËi `vI t

2q ch©vq 16 17

X Y

3q ch©vq m n

24. †KvbwU mKj †gŠ‡ji †ÿ‡Î cÖ‡qvR¨?

Kÿ ZvcgvÎvq wØcigvYyK M¨vm D”P Zwor FYvZ¥K †gŠj

avZzi mv‡_ AvqwbK †hŠM MVb K‡i cwieZ©bkxj †hvR¨Zv cÖ`k©b K‡i 25. DÏxcK Abymv‡i

i. Y Gi Zwor FYvZ¡KZv X n‡Z †ekx ii. n Gi B‡jKUªb Avmw³ Y n‡Z Kg iii. mX2 †hŠMwU A¤ø ag© cÖ`k©b K‡i wb‡Pi †KvbwU mwVK?

i I ii ii I iii i I iii i, ii I iii

welq †KvW 1 7 7 we G Gd kvnxb K‡jR XvKv

wbe©vPwb cixÿv2017 Øv`k †kªwY

welq t imvqb 2q cÎ (eûwbe©vPwb)

mgq t 25 wgwbU c~Y©gvb25

[ we‡kl `ªóe¨ t mieivnK…Z eûwbe©vPwb Afxÿvi DËic‡Îi cÖ‡kœi µwgK b¤^‡ii wecix‡Z cÖ`Ë eY©m¤^wjZ e„Ëmg~n n‡Z mwVK/m‡e©vrK…ó Dˇii e„ËwU ejc‡q›U Kjg Øviv m¤ú~Y© fivU Ki| cÖwZwU cÖ‡kœi gvb-1 ]

1. 2L `ªe‡Y 80 g NaOH `ªexf‚Z n‡j `ªe‡Yi NbgvÎv KZ?

1 M 2 M 0.5 M 0.25 M

2. WHO Gi cwimsL¨vb Abyhvqx PPm GK‡K Av‡m©wb‡Ki m‡e©v”P gvÎv n‡jv

0.01 0.04 0.05 0.06

3. OH^ Avq‡bi AYyeÜx A¤ø †KvbwU?

H2O O2 H3O+ O^2-

4. jyKvm weKviK e¨eüZ nq

†Kbj mbv³ Ki‡Y A¨vj‡Kvnj mbv³ Ki‡Y A¨vjwWnvBW mbv³ Ki‡Y ˆRe GwmW mbv³ Ki‡Y

5. †KvbwU wK‡Uv-B‡bvj mgvbyZv cÖ`k©b K‡i?

wg‡_vw· †cÖv‡cb †cÖvcv‡bvb

†cÖvcvb¨vj †cÈ-2-¸Y

6. cvwbi weï×Zv wbY©‡qi gvb`Û n‡jv

i. BOD ii. TDS iii. ETP wb‡Pi †KvbwU mwVK?

i I ii ii I iii i I iii i, ii I iii 7. Na2S4O6 †hŠ‡M S Gi Rvib gvb KZ?

+ 2 +2.5 +3.5 +4

8. 1 †gvj M¨v‡mi MwZkw³ †KvbwU?

NA 2

RT

3 nRT

32 2R

3 3/2 RT

9. Pt. H2/2H⁺ Gi mv‡_ K¨v‡_vW wnmv‡e †KvbwU e¨eüZ n‡e?

Zn/Zn²⁺ Zn²⁺/Zn Cu²⁺/Cu Fe²⁺/Fe

10. †Kvb Dcv`v‡bi Rb¨ wm‡gÈ RgvU evav ax‡i N‡U?

CaSO4.2H2O 3CaO.SiO2

CaO.A12O3 Al2O3.Fe2O3.CaO 11. Am¤ú„³ ˆRe †hŠM mbv³ Ki‡Y bx‡Pi †Kvb weKviK

e¨eüZ nq?

NaHCO3 `ªeY FeCl3 `ªeY

Br2 `ªeY BaCl2 `ªeY

12. K¨v‡jv‡gj Gi ms‡KZ †KvbwU?

HgCl2 AgCl Hg2Cl2 Hg2Cl 13. ﮋ‡Kv‡li wef‡ei gvb KZ?

+ 0.3 V + 0.76 V + 1.0 V + 1.5 V

14. b¨v‡bv‡UK‡bvjwRi mv‡_ wb‡Pi †KvbwU m¤ú„³?

i. gvB‡µv A¨vbvjvBwmm ii. KYvi AvKvi 10^-9g iii. c`v‡_©i AcPq †iva

wb‡Pi †KvbwU mwVK?

i I ii ii I iii i I iii i, ii I iii 15. SN1 wewµqvi †ÿ‡Î cÖ‡hvR¨

i. `yB av‡c N‡U

ii. mwµqZvi µg: 3R-X  2 R-X  1 R-X iii. RwUj †hŠM MwVZ nq

wb‡Pi †KvbwU mwVK?

i I ii ii I iii i I iii i, ii I iii 16. wb‡Pi †KvbwU †m‡KÛvix ÷¨vÛvW© c`v_©?

KMnO4 K2Cr2O7

H2C2O4 Na2C2O4

wb‡Pi DÏxcKwU jÿ¨ Ki Ges 17 I 18 bs cÖ‡kœi DËi

`vI t i. B_vBb

ii. A + CH3-Cl Abv`ª© AlCl3 B + HCl 17. A †hŠM n‡jv

C2H4 C2H6 C6H6 C6H5-CH3

18. DÏxc‡Ki B †hŠM‡K ÿvixq KMnO4 Øviv Rvib Ki‡j wb‡Pi †KvbwU ˆZwi nq?

CHO CH2OH

CH2Cl COOH

19. Zn GKwU Zwor ivmvqwbK Zzj¨vsK KZ?

3.388 × 10^-4 3.30 × 10^-4

3.29 × 10^-4 3.22 × 10^-4 20. †KvbwU Rxevk¥ R¡vjvbx?

Kqjv nvB‡Wªv‡Rb

A¨vj‡Kvnj BD‡iwbqvg

21. dz‡qj †m‡j †KvbwU ZworØvi wnmv‡e e¨eüZ nq?

wb‡Kj MÖvdvBU cøvwUbvg †jW 22. Kvwe©j A¨vwgb cixÿv Øviv †KvbwU kbv³ Kiv hvq?

wMømvwib †m‡KÛvix A¨vwgb Uviwmqvix A¨vwgb †K¬v‡ivdg©

23. 1 PPm mgvb

1 mg/L 1 mg/mL

1 g/L 1 moL/L

24. A¨vwbwj‡b wmMgv eÜb msL¨v KZ?

6 8 10 14

25. 16g O2 Gi Rb¨ Av`k© M¨vm mgxKiY †KvbwU?

PV = nRT PV = RT

PV =

12 RT PV = 2 RT 450C Fe A