Question
Question: Which one of the following undergoes reaction with 50% sodium hydroxide solution to give the corresp...
Which one of the following undergoes reaction with 50% sodium hydroxide solution to give the corresponding alcohol and acid?
A
Phenol
B
Benzoic acid
C
Butanal
D
Benzaldehyde
Answer
Benzaldehyde
Explanation
Solution
Benzaldehyde undergoes disproportionation with 50% NaOH to given benzyl alcohol and sodium benzoate
C6H6CHO 
C6H5CH2OH + C6H5COONa
This is Cannizzaro's reaction.