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Question

A mixture of C6H5CHO and HCHO is treated with NaOH, then the Cannizzaro’s reaction involves:


A

Oxidation of HCHO

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B

Reduction of HCHO

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C

Oxidation of C6H5CHO

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D

Reduction and oxidation of C6H5CHO

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Solution

The correct option is A

Oxidation of HCHO


Cross-Cannizzaro reactions involving HCHO almost always have formaldehyde oxidized to formic acid or formates. C6H5CHO+HCHOC6H5CH2OH+HCOOH. Thus HCHO is oxidized to HCOOH.


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