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In the Cannizzaro reaction , which is th...

In the Cannizzaro reaction , which is the slowest step ?
`2PhCHOoverset(OH^(-))rarrPhCH_(2)OH+PhCOO^(-)`

A

THE attack of ` OH^(-)` at the carbonyl group

B

the transfer of hydride to the carbonyl group

C

The abstraction of proton from carboxylic acid

D

The deprotonation of `PhCH_2 OH`

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The correct Answer is:
B
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