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Q.

In Cannizzaro reaction given below: 

2PhCHOOHPhCH2OH+PhCO2 

The slowest step is

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a

The attack of  -OH at the carboxylic group

b

The deprotonation of PhCH2OH

c

The abstraction of proton from the carboxylic group

d

The transfer of hydride to the carbonyl group

answer is B.

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Detailed Solution

The mechanism of the reaction involves the following steps.

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The shifting of hydride ion to the carbonyl group is the slowest step.

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