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Question

In the following sequence of reactions TolueneKMnO4−−−−ASOCl2−−−BH2/Pd−−−BaSO4C; then product C is:

A
C6H5COOH
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B
C6H5CH3
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C
C6H5CH2OH
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D
C6H5CHO
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Solution

The correct option is D C6H5CHO
The oxidation of toluene with KMnO4 gives benzoic acid.

Thionyl chloride converts carboxylic group to acid chloride.

Reaction with hydrogen in presence of palladium and barium sulphate gives benzaldehyde.

Option D is correct.

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