The correct match between items of List-I and List-II is :List - I List - II (A) Coloured impurity (P) Steam distillation (B) Mixture of o-nitrophenol and p-nitrophenol (Q) Fractional distillation (C) Crude Naphtha (R) Charcoal treatment (D) Mixture of glycerol and sugars (S) Distillation under reduced pressure
| List - I | List - II |
| (A) Coloured impurity | (P) Steam distillation |
| (B) Mixture of o-nitrophenol and p-nitrophenol | (Q) Fractional distillation |
| (C) Crude Naphtha | (R) Charcoal treatment |
| (D) Mixture of glycerol and sugars | (S) Distillation under reduced pressure |
Show Hint
- (A)-(R), (B)-(S), (C)-(P), (D)-(Q)
- (A)-(R), (B)-(P), (C)-(S), (D)-(Q)
- (A)-(R), (B)-(P), (C)-(Q), (D)-(S)
- (A)-(P), (B)-(S), (C)-(R), (D)-(Q)
The Correct Option is C
Solution and Explanation
(B) o-Nitrophenol is steam volatile (intramolecular H-bonding) whereas p-nitrophenol is not (intermolecular H-bonding), so they are separated by steam distillation: (P).
(C) Crude naphtha is a mixture of liquids with close boiling points, separated by fractional distillation: (Q).
(D) Glycerol decomposes at its normal boiling point, so it is separated from sugars by distillation under reduced pressure: (S).
Match: A-R, B-P, C-Q, D-S, i.e. option (3).
Answer: (3) (A)-(R), (B)-(P), (C)-(Q), (D)-(S)
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