Given below are two statements:
Statement (I): 1,2,3-Trihydroxypropane can be separated from water by simple distillation.
Statement (II): An azotropic mixture cannot be separated by fractional distillation.
In the light of the above statements, choose the correct answer from the options given below:
Statement (I): 1,2,3-Trihydroxypropane can be separated from water by simple distillation.
Statement (II): An azotropic mixture cannot be separated by fractional distillation.
In the light of the above statements, choose the correct answer from the options given below:
- (A)Both Statement I and Statement II are true
- (B)Both Statement I and Statement II are false
- (C)Statement I is true but Statement II is false
- (D)Statement I is false but Statement II is true✓ Correct
Answer: (D)
Solution
Glycerol (1,2,3-trihydroxypropane) boils at about and begins to decompose on strong heating, so at atmospheric pressure it cannot be recovered from water by simple distillation; it is purified by distillation under reduced pressure. An azeotrope boils at a constant temperature and its vapour has the same composition as the boiling liquid, so repeated fractional distillation leaves the composition unchanged and cannot separate the components. The first statement is false while the second is true.
JEE Main · 2026 · 02 Apr 2026 · Shift 1 · Single correct option