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Question

When HCHO is treated with C6H5CHO in presence of conc.NaOH, the product are:

A
CH3OH and HCOONa
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B
C6H5CH2OH and C6H5COONa
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C
CH3OH and C6H5COONa
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D
HCOONa and C6H5CH2OH
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Solution

The correct option is D HCOONa and C6H5CH2OH
The reaction is called crossed Cannizzaro's reaction and HCHO being the most reactive aldehyde is exclusively oxidised to sodium formate while the other aldehyde is always reduced to alcohol.
HCHO+C6H5CHOconc.NaOH−−−−−−HCOONa+C6H5CH2OH

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