JEE Main 2009ChemistrySolutionsRelative Lowering Of Vapour Pressure And Roults LaweasyMCQ

JEE Main 2009Solutions Question with Solution

From: AIEEE 2009

Question

A binary liquid solution is prepared by mixing n-heptane and ethanol. Which one of the following statements is correct regarding the behaviour of the solution ?

Choose an option

Show full solutionCorrect option: B
Correct answer
BThe solution is non-ideal, showing +ve deviation from Raoult’s law.

Step-by-step explanation

For this solution intermolecular interactions between -heptane and ethanol aare weaker than -heptane -- heptane & ethanol-ethanol interactions hence the solution of -heptane and ethanol is non-ideal and shows positive deviation from Raoult's law.

Practice this on the real CBT interface

Solve this JEE Main question (and the rest of the Solutions 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 2009, covering the Solutions 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.