1. A
   K and L are geometrical isomers.
2. B
   K and L are enantiomers
3. C
   M and N are geometrical isomers.
4. D
   M and N are stereoisomers

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1. A
   $[\text{Cr(py)}_3(\text{Cl})_3]$
2. B
   $[\text{Cr(H}_2\text{O})_6]^{3+}$
3. C
   $[\text{Co(NH}_3)_4(\text{H}_2\text{O})_2]^{3+}$
4. D
   $[\text{Ni(en)}_2(\text{H}_2\text{O})_2]^{2+}$

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1. A
   A and B only
2. B
   B and D only
3. C
   A and C only
4. D
   C and D only

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1. A
   A-II, B-III, C-IV, D-I
2. B
   A-IV, B-I, C-II, D-III
3. C
   A-IV, B-II, C-I, D-III
4. D
   A-III, B-I, C-IV, D-II

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1. A
   $\underline{P}_4O_{10} > \underline{S}O_3 > H_2\underline{O}$
2. B
   $\underline{N}_2O_5 > \underline{Al}_2O_3 > H_2\underline{S}$
3. C
   $\underline{Pb}O_2 > \underline{N}_2O_3 > \underline{S}O_3$
4. D
   $\underline{P}_4O_6 > \underline{Cl}_2O_7 > \underline{Al}H_3$

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1. A
   A cyclopentanone bearing two methyl groups condensed with a second cyclopentenyl ring bearing two methyls (aldol product where the carbonyl compound self-condenses at the beta carbon)
2. B
   2,2-dimethyl-5-(phenylmethylidene)cyclopentan-1-one ($\alpha,\beta$-unsaturated ketone with =CH-Ph at the position away from the gem-dimethyl)
3. C
   A cyclopentanone with gem-dimethyl condensed with a gem-dimethyl cyclopentenyl ring
4. D
   2,2-dimethyl cyclopentanone bearing =CH-Ph (benzylidene) at the alpha position adjacent to the gem-dimethyl carbon

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1. A
   hepta-1,3-diene
2. B
   hepta-1,4-diene
3. C
   hepta-1,5-diene
4. D
   hepta-1,6-diene

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1. A
   Both Statement-I and Statement-II are correct
2. B
   Both Statement-I and Statement-II are incorrect
3. C
   Statement-I is correct but Statement-II is incorrect
4. D
   Statement-I is incorrect but Statement-II is correct

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1. A
   $\text{K}_2\text{MnO}_4$
2. B
   $\text{Mn}_3\text{O}_4$
3. C
   MnO
4. D
   $\text{KO}_2$

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1. A
   On treating compound P with saturated $\text{NaHCO}_3$ solution, brisk effervescence is observed.
2. B
   Compound P can be prepared by treating benzene with anhydrous $\text{AlCl}_3$ and $\text{CH}_3\text{COCl}$.
3. C
   On treatment with bromine water, compound P gives a white precipitate.
4. D
   Compound P is obtained by the hydrogenation of benzoyl chloride with Pd on $\text{BaSO}_4$.

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1. A
   $[\text{CoCl}_2(\text{NH}_3)_4]\text{Cl}$
2. B
   $[\text{CoCl(NH}_3)_5]\text{Cl}_2$
3. C
   $[\text{Co(NH}_3)_6]\text{Cl}_3$
4. D
   $[\text{Co(NH}_3)_3(\text{NO}_2)_3]$

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1. A
   A
2. B
   B
3. C
   C
4. D
   D

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1. A
   A < B < C < D
2. B
   C < A < D < B
3. C
   C < A < B < D
4. D
   A < C < B < D

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1. A
   $\pi_{2p}$
2. B
   $\sigma_{2p}$
3. C
   $\pi^{*}_{2p}$
4. D
   $\sigma^{*}_{2p}$

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1. A
   7
2. B
   12
3. C
   26
4. D
   206

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1. A
   lichens
2. B
   sponges
3. C
   mycorrhiza
4. D
   chrysophytes

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1. A
   Schleiden and Schwann
2. B
   Robert Brown
3. C
   Singer and Nicolson
4. D
   Antonie Von Leeuwenhoek

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1. A
   (b) and (c) only
2. B
   (a) and (c) only
3. C
   (a), (c) and (d) only
4. D
   (a), (b) and (c) only

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1. A
   Arachnoid
2. B
   Dura mater
3. C
   Pia mater
4. D
   Pericardium

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1. A
   matrix
2. B
   cytosol
3. C
   mucus
4. D
   aqueous humor

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1. A
   A-III, B-IV, C-I, D-II
2. B
   A-II, B-IV, C-I, D-III
3. C
   A-II, B-IV, C-III, D-I
4. D
   A-IV, B-III, C-I, D-II

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1. A
   chloroplast
2. B
   chromoplast
3. C
   aleuroplast
4. D
   amyloplast

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1. A
   (a) and (b) only
2. B
   (a), (b) and (c) only
3. C
   (c) and (d) only
4. D
   (b) and (c) only

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1. A
   Phosphoenolpyruvate
2. B
   2-Phosphoglycolate
3. C
   Oxaloacetate
4. D
   Malate

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1. A
   prions
2. B
   viroids
3. C
   Aspergillus sp.
4. D
   Mycoplasma sp.

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