JEE Main Chemistry question

Aldehyde not showing Cannizzaro's reaction is

(A)ParaldehydeCorrect
(B)Chloral
(C)Formaldehyde
(D)Acetaldehyde

Answer: (A)

Solution

Paraldehyde is the cyclic trimer of acetaldehyde (an acetal-type ring, not a free aldehyde with an exposed carbonyl group), so it has no reactive carbonyl at all and cannot undergo Cannizzaro's reaction; chloral and formaldehyde both lack an α-hydrogen and undergo

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Question ID VK-149417