Carboxylic Acid and Acid DerivativesHard
Question
3-Hydroxybutanal is found when X reacts with Y in dilute Z solution. What are X,Y and Z?.
Options
A.X - CH3CHO
Y - (CH3)2CO
Z - NaOH
Y - (CH3)2CO
Z - NaOH
B.X - CH3CHO
Y - CH3CHO
Z - NaCl
Y - CH3CHO
Z - NaCl
C.X - (CH3)2CO
Y - (CH3)2CO
Z - HCl
Y - (CH3)2CO
Z - HCl
D.X - CH3CHO
Y - CH3CHO
Z - NaOH
Y - CH3CHO
Z - NaOH
Solution
The product obtained is
This produuct is obtained when 2 molucles of CH3CHO are heated with concentrated alkali (NaOH)

[Note : The aldehydes having α - hydrogen atom on heatig with concentrated alkali give brown resinous mass; aldol condennsation]
This produuct is obtained when 2 molucles of CH3CHO are heated with concentrated alkali (NaOH)
[Note : The aldehydes having α - hydrogen atom on heatig with concentrated alkali give brown resinous mass; aldol condennsation]
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