Identify A in the following reaction: | vedclass

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(B) The given reaction is the Wolff-Kishner reduction. In this reaction,a carbonyl group $(C=O)$ of an aldehyde or ketone is reduced to a methylene gr

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$CH_3-CH_2-CH_2-CH_3$

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(B) The given reaction is the Wolff-Kishner reduction. In this reaction,a carbonyl group $(C=O)$ of an aldehyde or ketone is reduced to a methylene group $(CH_2)$ using hydrazine $(N_2H_4)$ followed by heating with a strong base like $KOH$ in a high-boiling solvent such as ethylene glycol. The starting material is butan$-2-$one $(CH_3-CO-CH_2-CH_3)$. Upon treatment with $N_2H_4$ and ethylene glycol/$KOH$,the ketone group is reduced to a methylene group,yielding butane $(CH_3-CH_2-CH_2-CH_3)$.

Identify $A$ in the following reaction:

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