JEE Main 2021 · ChemistryMultiple choiceSingle correctEasyRecall

JEE Main 24 February 2021, Shift 1, Chemistry Q42

Question 42 of 90 in this shift, Chemistry question 12 of 30, Section A.

Which of the following reagent is used for the following reaction ?

\mathrm{CH_3CH_2CH_3 \xrightarrow{\ ?\ } CH_3CH_2CHO}

(1)Copper at high temperature and pressure
(2)Molybdenum oxideOfficial answer
(3)Manganese acetate
(4)Potassium permanganate

Official answer

Option 2

NTA final key.

Chapter: Hydrocarbons
Topic: Alkanes and Free Radicals
Idea tested: Controlled Oxidation Catalysts

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Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.