1.

Which is not a nucleophilic addition reaction :

Answer»

`RCHO + NaHSO_3 rarr RCH(OH)SO_3Na`
`RCHO + 2H rarr RCH_2OH`
`RCHO + HCN rarr RCH(OH)CN`
`RCHO + NH_3 rarr RCH(OH)NH_2`

Answer :B


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