A flask contains a mixture of isohexane and


A flask contains a mixture of isohexane and $3-$ methylpentane. One of the liquids boils at $63^{\circ} \mathrm{C}$ while the other boils at $60^{\circ} \mathrm{C}$. What is the best way to seprate the two liquids and which one will be distilled out first?

  1. simple distillation, 3 -methylpentane

  2. simple distillation, isohexane

  3. fractional distillation, isohexane

  4. fractional distillation, 3-methylpentane

Correct Option: , 3


Liquid which have less difference in boiling point can be isolated by fractional distillation and liquid with less boiling point will be isolated first.

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