The reagent used for the separation of acetal | vedclass

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Question

(A) $NaHSO_3$ forms a crystalline addition product with acetaldehyde (an aliphatic aldehyde),whereas acetophenone (an aromatic ketone) does not react

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$NaHSO_3$

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(A) $NaHSO_3$ forms a crystalline addition product with acetaldehyde (an aliphatic aldehyde),whereas acetophenone (an aromatic ketone) does not react with $NaHSO_3$ due to steric hindrance. $CH_3CHO + NaHSO_3 	o CH_3CH(OH)SO_3Na$ (White crystalline solid) $C_6H_5COCH_3 + NaHSO_3 	o 	ext{No reaction}$ The addition product can be separated by filtration and then decomposed by dilute acid or base to recover the pure acetaldehyde.

The reagent used for the separation of acetaldehyde from acetophenone is

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