Among the following, the number of react...

Among the following, the number of reaction(s) that produce(s) benzaldehyde is

A

(I), (II), (IV)

B

(I), (II), (III), (IV)

C

(I), (IV)

D

(II), (IV)

Verified by Experts

The correct Answer is:

B

Benzaldehyde is formed in all the reactions.
This is an example of Gattermann-Koch aldehyde synthesis :

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