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bqWn‰v ˛ 3

CeIvtSm¨ hn\ymkhpw ]ocntbmUnIv tS_nfpwCeIvtSm¨ hn\ymkhpw ]ocntbmUnIv tS_nfpwCeIvtSm¨ hn\ymkhpw ]ocntbmUnIv tS_nfpwCeIvtSm¨ hn\ymkhpw ]ocntbmUnIv tS_nfpwCeIvtSm¨ hn\ymkhpw ]ocntbmUnIv tS_nfpw

QUESTION POOL 2012-13CHEMISTRY

bqWn‰v ˛ 3 & 4Std : X

1. Hcp aqeIØns‚ At‰manI \º¿ 16 BWv. XmsgsImSpØncn°p∂ tNmZyßƒ°v

DØcw FgpXpI.

a) k_vsj¬ IaØnep≈ CeIvtSm¨ hn\ymkw FgpXpI? (1)

b) Kq∏v GXv? ½

c) ]ocnUv GXv? ½

d) tªm°v GXv? ½

2. Nne aqeIßfpsS CeIvtSm¨ hn\ymkw XmsgsImSpØncn°p∂p. sX‰ps≠¶n¬

XncpØn FgpXpI. (2)

a) 1s2 2s2 2p3 3s2

b) 1s2 2s2 2p6 3s3 3p6

c) 1s2 2s2 2p5

d) 1s2 2s2 2p6 3s2 3s6 3d1 4s2

3. c≠v aqeIßfpsS ]ocntbmUnIv tS_nfnse ÿm\w X∂ncn°p∂p.

A - Kq∏v ˛ 1 ]ncoUv ˛ 3

B - Kq∏v ˛ 18 ]ncoUv ˛ 2

a) A, B F∂nhbnse sj√pIfpsS FÆw FX? (1)

b) A, B F∂nhbpsS k_vsj¬ CeIvtSm¨ hn\ymkw FgpXpI (2).

c) A, B F∂nhbpsS kwtbmPIX FgpXpI. (1)

d) A, B F∂nh tN¿∂v kwbp‡w D≠mIptam? F¥psIm≠v? (1½)

4. tImanbØns‚ At‰manI \º¿ 24 BWv. c≠v Ip´nIƒ tImanbØns‚

CeIvtSm¨ hn\ymkw XmsgsImSpØncn°p∂ coXnbn¬ FgpXnbncn°p∂p.

icntbXv? ImcWsa¥v?

a) 1s2 2s2 2p6 3s2 3p6 3d5 4s1 (2)

b) 1s2 2s2 2p6 3s2 3p6 3d4 4s2

anIhv 2012˛13Pn√m]©mbØv & Ub‰v ImkdtKmUv

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5. ]´nI ]q¿ØoIcn°pI (4)

aqeIw A]q¿Æ CeIvtSm¨ ]q¿Æamb CeIvtSm¨ ]ncobUv Kq∏v tªm°v

hn\ymkw hn\ymkw

X 3s2 3p3 - - - -

Y 3d3 4s2 - - - -

6. Ccpºns‚ At‰manI \º¿ 26. XmsgsImSpØncn°p∂hbpsS k_vsj¬

IaØnep≈ CeIvtSm¨ hn\ymkw FgpXpI. (3)

a) Fe

b) Fe2+

c) Fe3+

7. XmsgsImSpØncn°p∂ kwbp‡ßfn¬ aqeIßfpsS HmIvkoIcWmhÿ

FgpXpI. (2)

Cu Cl

CuCl - -

CuCl2 - -

8. tNcpw]Sn tN¿°pI. (2)

A Ba) 4s2 D¬IrjvSaqeIw

b) 3p6 hyXykvX kwtbmPIX

c) 3d4 4s2 CeIvtSms\K‰nhn‰n IqSpX¬

d) 2p5 temlßƒ

10. H0 + F → H F → H - F (3)

a) HF se cmk_‘\w F¥v?

b) Cu kwbp‡Øn\v t]mfm¿ kz`mhw Dt≠m? ImcWw F¥v?

c) t]mfm¿ kz`mhw D≈ Hcp kwbp‡Øns‚ t]cv FgpXpI.

9. Nne aqeIßfpsS CeIvtSms\K‰nhn‰n X∂ncn°p∂p.

(Na = 0.9, 0 = 3.5, H = 2.1)

a) tkmUnbw HmIvsskUnse cmk_‘\w F¥v? (1½)

b) HmIvknP≥ X∑mX (O2) bnse cmk_‘\w F¥v? ImcWw F¥v? (1)

3/8

11. Nne aqeIßfpsS AtbmWoIcW Du¿÷w sImSpØncn°p∂p. (3)

A → 520KJ/mol

B → 2372 KJ/mol

C → 1256 KJ/mol

D → 900 KJ/mol

a) D¬IrjvSaqeIw GXv?

b) Inbmioew IqSnb temlw GXv?

c) AtemlamIm≥ G‰hpw IqSpX¬ km[yX GXv?

12. ]´nI ]q¿ØoIcn°pI. (2)

sj¬ k_vsj√pIƒ Dƒs°m≈mhp∂ ]camh[n

CeIvtSmWpIfpsS FÆw

K ____ 2

____ s, p ____

M s__, __ 18

13. icnbmbh sXcs™SpØv FgpXpI. (2)

a) Kq∏n¬ Xmtgm´v Bt‰manI hep∏w IqSp∂p.

b) ]ncoUn¬ CSØv \n∂v hetØm´v CeIvtSm s\K‰nhn‰n Ipdbp∂p.

c) NaCl Hcp \ndap≈ kwbp‡amWv.

d) s, p F∂o tªm°nse aqeIßsf ]mXn\n[y aqeIßƒ F∂p]dbp∂p.

14. Bh¿Ø\ ]´nIbpsS A]q¿Æcq]w XmsgsImSpØncn°p∂p. (2½)

]XoIßƒ bYm¿∞a√.

1

2

3 4 5 6 7 8 9 10 11 12

13 14 15 16 17A

B C D

E

F

GH

18

a) d tªm°v aqeIw GXv?

b) G‰hpw henb B‰ap≈Xv GXn\v?

c) D¬IrjvS aqeIw GXv?

4/8

d) CeIvtSm s\K‰nhn‰n IqSpX¬ D≈Xv GXn\mbncn°pw?

e) 2s2, 2p1 CeIvtSm¨ hn\ymkw hcp∂ aqeIw GXv?

15. Nne k_vsj√pIƒ XmsgsImSpØncn°p∂p. (2)

1s, 2p, 5s, 3d, 4d, 3s, 4p

a) Du¿÷w IqSnhcp∂ IaØn¬ FgpXpI.

b) 4d-¬ ]camh[n FX CeIvtSm¨ D≠mhmw?

16. a) 1s2 2s2 2p6 3s2 (3)

b) 1s2 2s2 2p4

c) 1s2 2s2 2p6 3s2 3p5

a) CXn¬ kwtbmPIX H∂v hcp∂ aqeIw GXv?

b) A bpw C bpw tN¿∂m¬ D≠mIp∂ kwbp‡Øns‚ cmkkqXw FgpXpI.

c) temlob kz`mhw D≈ aqeIw GXv?

17. A, B, C, D, E F∂o aqeIßfpsS k_vsj¬ IaØnep≈ CeIvtSm¨ hn\ymkw

sImSpØncn°p∂p.

A 1s2 2s2 2p6 3s1

B 1s2 2s2 2p3

C 1s2 2s1

D 1s2 2s2 2p6 3s2 3p6 4s2 3d1

E 1s2 2s2 2p6 3s2 3p3

a) Htc Kq∏n¬ hcp∂h GsXms°? (1)

b) Htc ]ncoUn¬ hcp∂h (1)

c) p tªm°n¬ hcp∂h (1)

d) \ndap≈ kwbp‡w Xcp∂ aqeIw (1)

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bqWn‰v ˛ 4

temlßƒtemlßƒtemlßƒtemlßƒtemlßƒ

1. tkmUnbw, sa·ojyw, Atb¨, tIm∏¿ F∂o temlßƒ X∂ncn°p∂p.

a) Pehpambn ]h¿Ø\ XohX IqSnhcp∂ IaØn¬ Ch IaoIcn°pI. (1)

b) D∂X Xm]\nebnep≈ \ocmhnbpambn ]h¿Øn°p∂ temlw GXv? (½)

c) asÆÆbn¬ kq£n°p∂ temlw GXv? (½)

d) tkmUnbhpw Pehpw XΩnep≈ cmk]h¿Ø\Øns‚ cmkhmIyw FgpXpI.

(1½)

2. Irjn Bbp[ßƒ s]bn‚Sn®mWv km[mcWbmbn ISbn¬ hnev]\bv°v sh°p∂Xv.

a) s]bn‚Sn°m≥ F¥mWv ImcWw? (½)

3. Aeqan\nbw ]mXØn¬ tamcv kq£n°p∂Xv \√X√ F∂p]dbp∂Xns‚

imkvXobX F¥v? (1)

4. Zn + FeSo4 → ZnSo4 + Fe

a) Cu cmk]h¿Ø\Øns‚ t]cv F¥v? (½)

b) HmIvkntUj≥ kw`hn°p∂Xv GXn\v? (1)

c) HmIvkoIcWØns‚ kahmIyw FgpXpI. (1)

5.

Cu

CuSO4

a

Fe

CuSO4

b

Ag

CuSO4

c

a) GXv _o°dnemWv \ndwam‰w D≠mIp∂Xv? (½)

b) B _o°dn¬ \S°p∂ cmk]h¿Ø\Øns‚ kahmIyw FgpXpI. (1)

6. Km¬h\nIv sk¬ cq]oIcn°m\mhiyamb Nne kmaKnIƒ XmsgsImSp°p∂p.

Mg tπ‰v, Cu tπ‰v, Zn tπ‰v, MgSO4 emb\n, CuSO4 emb\n, FeSO4 emb\n,

AgNO3 emb\n, kmƒ v _nUvPv, NmeIw, _o°dpIƒ

a) Chbn¬ Bhiyambh sXcs™SpØv Hcp Km¬h\nIv sk√ns‚ NnXw

hcbv°pI. (2)

b) CXnse Bt\mUv, ImtYmUv Ch GXmWv? (1)

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7.

Fe

CuSO4

a) tIm∏¿ kƒt^‰v emb\nbpsS \ndw F¥v? (½)

b) Ccpºn\v apIfn¬ \nt£]n°p∂ temlw GXv? (1)

8. Km¬h\nIv sk√nse c≠v CeIvtSmUpIfmWv A, B. Chbn¬ \S°p∂ ]h¿Ø\w

Xmsg sImSpØncn°p∂p.

A → An+ +neBn+ + ne → B

a) Bt\mUv, ImtYmUv Ch GXmWv? (1)

b) sshZypX ]hmlZni GXn¬ \n∂v GXnte°mbncn°pw? (1)

9. Km¬h\nIv sk√ns‚ NnXw Xmsg sImSp°p∂p.

Fe

MgSO4

Mg

AgNO3

v

a) sX‰ps≠¶n¬ XncpØn hcbv°pI. (2)

10. Ccpºns‚ [mXp°fmWv Atb¨ ss]ssd‰nkv, tlass‰‰v, am·ss‰‰v F∂nh.

a) CXn¬ Ccpºns‚ Abncv GXv? (½)

b) CXns\ Abncmbn sXcs™Sp°m\p≈ c≠v khntijXIƒ Gh? (2)

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11. tNcpw]Sn tN¿°pI. (2)

A B CAeqan\nbw Nnenkmƒ v]o‰¿ CuFeS2

tkmUnbw tIm∏¿ ss]d‰nkv Al2O3, 2H2O

tIm∏¿ t_mIvssk‰v Fe2O3

Ccpºv tlass‰‰v NaNO3

12. Hcp Abncnep≈ KmMv BWv P2O5.

a) Cu KmMns\ \o°w sNøm≥ Xmsg X∂ncn°p∂hbn¬ GXns\ sXcs™Sp°pw.

(CaO, SiO2) (½)

b) CXns\ vfIvkmbn sXcs™Sp°m\p≈ ImcWw F¥v? (1)

13. ªmÃv ¿Ækn¬ \S°p∂ Hcp cmk]h¿Ø\w XmsgsImSp°p∂p.

CaO + SiO2 → CaSiO3

a) CXn¬ vfIvkv GXv? (½)

b) CXn¬ KmMns‚ kz`mhw F¥v? (½)

c) vfIvkv sXcs™Sp°ptºmƒ i≤nt°≠ Imcysa¥v? (1)

14. tlass‰‰ns\ \ntcmIvkoIcn®mWt√m Ccpºv \n¿Ωn°p∂Xv.

a) Ccpºv \n¿ΩmWØn\v D]tbmKn°p∂ D]IcWØns‚ t]cv F¥v? (½)

b) CXn¬ \n∂v e`n°p∂ Ccpºns‚ t]cv F¥v? (½)

c) CXn¬ \n∂v ImÃv Atb¨ Fßs\ \n¿Ωn°mw? (1)

15. CaO + SiO2 → CaSiO3

Fe2 O3 + 3CO →2Fe + 3 CO2

a) CXn¬ GXmWv vfIvkv? (½)

b) …mKv D≠mIp∂ cmk]h¿Ø\w GXv? (1)

c) \ntcmIvkoImcn GXv? (1)

16. Nne temlßƒ XmsgsImSpØncn°p∂p.

(kz¿Æw, Aeqan\nbw, tkmUnbw, kn¬h¿, Atb¨, πm‰n\w, kn¶v)

a) Im¿_¨ D]tbmKn®v \ntcmIvkoIcn®v \n¿Ωn°p∂h GsXms°? (1)

b) sshZypX hnt«jWw hgn \n¿Ωn°p∂ temlßƒ Gh? (1)

c) kzX¥cq]Øn¬ ImWs∏Sp∂h GsX√mw? (1)

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17.

a) NnXØn¬ a, b, c ASbmfs∏SpØpI. (1½)

b) Aeqan\nbw Dev]mZn∏n°p∂ ]InbbpsS t]cv? (½)

c) Im¿_¨ ZWvUpIƒ CSbv°nsS am‰p∂Xv F¥n\v? (1)

18. ]´nI ]q¿ØoIcn°pI. (2)

Ão¬ ]tXyIX D]tbmKw

sÃbn≥sekv Ão¬ ________ hml\ßfpsS mKßƒ

\n¿Ωn°m≥

____________ Im¥oIkz`mhw ___________

\ntImw ________ CkvXncns∏´n

123123123123123123123123123123123123123123123123123123

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+ + +

c

b

a

***

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