Question

complett reactions
(1) C6H5CHO+HCN
(2) C6H5CHO+NH2OH​

Answer 1

Answer:

1. C6H5CHO+HCN= C6H5CH(OH)CN

Answer 2

The reactions are completed as shown below.

1) Aldehydes including benzaldehyde (C₆H₅CHO) upon their reaction with Hydrogen cyanide (HCN), produce cyanohydrins (-C(OH)CN).

Therefore,

C₆H₅CHO + HCN → C₆H₅CH(OH)CN

This cyanohydrin so produced, is also termed as Mandelonitrile (cyanohydrin derivative of benzoic acid).

2) The reaction of aldehydes (including C₆H₅CHO) in presence of hydroxyl amine (NH₂OH), gives rise to oximes -C=N-OH by the removal of water molecule.

Therefore,

C₆H₅CHO + NH₂OH → C₆H₅CH(NOH) + H₂O