Which of the following can be separated by using sodium bisulphite?
A
Acetaldehyde and benzaldehyde
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B
Benzophenone and acetaldehyde
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C
Acetone and acetaldehyde
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D
All of these
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Solution
The correct option is B Benzophenone and acetaldehyde Diethyl ketone, acetophenone, benzophenone etc. do not undergo reaction with NaHSO3. It is due to steric hindrance of the bulky groups present around the carbonyl group.