JEE Main 2021ChemistryHydrocarbonsReaction Of AlkanesmediumMCQ

JEE Main 2021Hydrocarbons Question with Solution

From: JEE Main 2021 (Online) 17th March Evening Shift

Question

Given below are two statements :

Statement I : 2-methylbutane on oxidation with KMnO4 gives 2-methylbutan-2-ol.

Statement II : n-alkanes can be easily oxidised to corresponding alcohols with KMnO4.

Choose the correct option :

Choose an option

Show full solutionCorrect option: C
Correct answer
CStatement I is correct but statement II is incorrect

Step-by-step explanation

Alkanes having tertiary H can be oxidized to corresponding alcohols by KMnO4.

JEE Main 2021 (Online) 17th March Evening Shift Chemistry - Hydrocarbons Question 85 English Explanation
whereas ordinary alkanes resist oxidation.

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About this question

This is a previous-year question from JEE Main 2021, covering the Hydrocarbons 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.