Question

the two liquids of the mixture having the same boiling points cannot be separated by distillation .explain

Answer 1

because if both the liquid have same boiling point then it's vapour phase will contain 50percent of each liquid and we will again get the same mixture.
you can separate it by using other techniques like chromatography, osmosis etc.

Answer 2

The two liquids of the mixture having the same boiling points cannot be separated by distillation because:

• Distillation is a technique for isolating two mixtures that have distinctive edges of a boiling point.
• When the boiling points of two substances are the same, they both evaporate and collect in the condensation tube at the same time, hence distillation cannot be used for two substances with the same boiling point.
• Therefore, distillation can only separate a mixture of two different liquids with different boiling points.