JEE Main 2020ChemistryGeneral Organic ChemistryMediumMCQ

JEE Main 2020General Organic Chemistry Question with Solution

JEE Main 2020 (08 Jan Shift 1)

Question

A flask contains a mixture of isohexane and 3 -methylpentane. One of the liquids boils at 63oC while the other boils at 60oC. What is the best way to separate the two liquids and which one will be distilled out first?

Choose an option

Show full solutionCorrect option: A
Correct answer
Afractional distillation, isohexane

Step-by-step explanation

Liquid having lower boiling point comes out first in fractional distillation. fractional distillation is generally used if in boiling point is small.

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the General Organic Chemistry chapter) on PrepSharp's TCS iON-style CBT player — with timer, bookmarks and session analytics.

Solve interactively →

About this question

This is a previous-year question from JEE Main 2020, covering the General Organic Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.