Identify the reagent R used in following reaction. Ketone R semi carbazone

MHT CET 2025 Chemistry question

Identify the reagent R used in following reaction.

Ketone semi carbazone

(A)
(B)Correct
(C)
(D)-

Answer: (B)

Solution

A semicarbazone is the condensation product of a carbonyl compound with semicarbazide, : R_2C=O + H_2N-NH-CONH_2 \rightarrow R_2C=N-NH-CONH_2 + H_2O. So R is

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Question ID VK-100717