JEE Main20262 April 2026Morning ShiftChemistrySolutionsActual
Given below are two statements : Statement (I) : 1,2,3-Trihydroxypropane can be separated from water by simple distillation. Statement (II) : An azeotropic mixture cannot be separated by fractional distillation. In the light of the above statements, choose the correct answer from the options given below :
Options
- ABoth Statement I and Statement II are true
- BBoth Statement I and Statement II are false
- CStatement I is true but Statement II is false
- DStatement I is false but Statement II is true
Correct answer
D. Statement I is false but Statement II is true
Step-by-step solution
Statement I: 1,2,3 -Trihydroxypropane (glycerol) has a very high boiling point (around 290^ C ) and it decomposes at its boiling point under normal atmospheric pressure. Therefore, it cannot be separated from water by simple distillation. Instead, it is separated by distillation under reduced pressure (vacuum distillation). Hence, Statement I is false. Statement II: An azeotropic mixture is a constant boiling mixture in which the liquid and vapour phases have the exact same composition. Because there is no change i