Oxidation of 1-butene with hot KMnO_4 solution produces [Manipal 2008]

JEE Main Chemistry question

Oxidation of 1-butene with hot KMnO solution produces [Manipal 2008]

(A)CHCHCOOH + HCOOHCorrect
(B)CHCHCOOH + HCHO
(C)CHCOOH + CO
(D)(CH)C=O + CO

Answer: (A)

Solution

Hot, concentrated (vigorous) KMnO cleaves the C=C bond oxidatively all the way to carboxylic acids (or CO from a terminal =CH). 1-Butene, CH=CH–CHCH, gives propanoic acid

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Question ID VK-142242