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Question

Chemistry Question on Aldehydes, Ketones and Carboxylic Acids

3-hydroxy butanal is formed when X reacts with Y in dilute Z solution. What are X, Y and Z?

A

X−CH3CHO,   Y−(CH3)2CO,   Z−NaOHX - CH_3CHO, \, \, \, Y - (CH_3)_2CO, \, \, \, Z - NaOH

B

X−CH3CHO,   Y−CH3CHO,   Z−NaOIX - CH_3CHO, \, \, \, Y - CH_3CHO, \, \, \, Z - NaOI

C

X−(CH3)2CHO,   Y−(CH3)2CHO,   Z−HCIX - (CH_3)_2CHO, \, \, \, Y - (CH_3)_2CHO, \, \, \, Z - HCI

D

X−CH3CHO,   Y−CH3CHO,   Z−NaOHX - CH_3CHO, \, \, \, Y - CH_3CHO, \, \, \, Z - NaOH

Answer

X−CH3CHO,   Y−CH3CHO,   Z−NaOHX - CH_3CHO, \, \, \, Y - CH_3CHO, \, \, \, Z - NaOH

Explanation

Solution

Aldehyde having α\alpha.-H atoms undergo aldol condensation in the presence of dil. NaOH and yield β\beta-hydroxy aldehydes.