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The general order of reactivity of carbo...

The general order of reactivity of carbonyl compounds for nucleophilic addition reactions is -

A

`H_(2)C = O gt RCHO gt ArCHO gt R_(2)C =O gt Ar_(2)C =O`

B

`ArCHO gt Ar_(2)C =O gt RCHO gt R_(2)C = O gt H_(2)C =O`

C

`Ar_(2)C = O gt R_(2)C =O gt ArCHO gt RCHO gt H_(2)C =O`

D

`H_(2)C = O gt R_(2)C = O gt Ar_(2)C = O gt RCHO gt ArCHO`

Text Solution

Verified by Experts

The correct Answer is:
A
The size of the alkyl group, causes hindrance to attacking group. As the number and size of the alkyl groups increase the hindrance to the attack to nucleophile also increases. Thus the reactivity follows the order
`H_(2)C = O gt RCHO gt ArCHO gt R_(2)C = O gt Ar_(2)C = O`
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