JEE Main 2022ChemistryStates of MatterHardNumerical

JEE Main 2022 — States of Matter Question with Solution

JEE Main 2022 (29 Jun Shift 1)

Question

Geraniol, a volatile organic compound, is a component of rose oil. The density of the vapour is 0.46gL-1 at 257 °C and 100 mmHg. The molar mass of geraniol is (Nearest Integer)
[Given R=0.082 L atm K-1mol-1]

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Show full solutionCorrect answer: 152
Correct answer
152

Step-by-step explanation

Assuming ideal behaviour P=dRTM

P=100760 atm, T=257+273=530 K

d=0.46gm/L

So M=0.46×0.082×530100×760

=151.93≈152

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About this question

This is a previous-year question from JEE Main 2022, covering the States of Matter 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.