JEE Main Chemistry question

Primary, secondary and tertiary nitroalkanes can be identified by the action of

(A), then Correct
(B)
(C)
(D)None of these

Answer: (A)

Solution

Treating a nitroalkane first with and then with gives a class-specific colour response: a 1° nitroalkane forms a nitrolic acid whose sodium salt is red; a 2° nitroalkane forms a pseudonitrol, giving a blue colour

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Question ID VK-150461