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JEE Main levelOne or more correct optionsDifficulty 2 of 3co014

Which reagents convert acetone into a product that contains a $C = N$ bond?

A2,4-dinitrophenylhydrazine
Bsaturated aqueous $NaHSO X_{3}$
C $NH X_{2} OH$
D $NH X_{2} NHCONH X_{2}$

Answer: A, C, D

Hydroxylamine, semicarbazide and 2,4-DNP condense with the carbonyl to give oxime, semicarbazone and hydrazone, each with

C = N

.

NaHSO X_{3}

only adds across

C = O

to give a hydroxysulfonate.

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