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Question

Number of products ( excluding stereoisomers ) in the given reaction :
C6H5CHO+HCHOOH−−Product

A
One
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B
Three
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C
Two
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D
Four
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Solution

The correct option is C Two

Crossed Cannizzaro's reaction-
PhCHO+HCHONaOH−−−HCOONa+PhCH2OH

This is cross Cannizzaro's reaction of benzaldehyde and formaldehyde, benzaldehyde is reduced to benzyl alcohol as no alpha hydrogen atom is present. Formaldehyde is oxidized to formic acid.
Hence, the number of products formed in the reaction will be 2.

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