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Question

In the following sequence of reaction
TolueneKMnO4−−−−ASOCl2−−−BH2/Pd−−−BaSO4C
the 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 A C6H5CHO

KMnO4 oxidizes toulene to benzoic acid.
(Refer to Image)
In the presence of Pd/BaSO4 (Lindlar's catalyst) Benzoyl chloride gets converted to benzaldehyde. The reaction is called Rosenmund reduction.

1214521_1127954_ans_0af40ba821a04f789a792a9f540d4026.PNG

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