Statement-I : 1, 2, 3-trihydroxy propane can be separated from water by using simple distillation.
Statement-II : Azeotropic mixture cannot be separated by using fractional distillation.
(1) Statement-I and statement-II both are correct.
(2) Statement-I and statement-II both are incorrect.
(3) Statement-I correct but statement-II is incorrect.
(4) Statement-I incorrect but statement-II is correct.
Show Solution
The Correct Option isD
Solution and Explanation
Purification techniques of organic compounds and properties of azeotropes.
ANALYSIS:
1. Glycerol (1,2,3-trihydroxypropane) is viscous and has a high B.P. Distilling it at normal pressure causes decomposition. Hence, vacuum distillation is required, not simple distillation. Statement-I is false.
2. Azeotropes are mixtures where the vapor has the same composition as the liquid at a specific temperature. Because the composition doesn’t change upon boiling, fractional distillation fails. Statement-II is true.
3. Result: I is false, II is true. Option (4).
