Question

How does Acetaldehyde (CH3CHO) reacts with :(i) HCN
(ii) Hydrazine (NH2NH2)​

Answer 1

Answer:

it is how does Acetaldehyde (CH3CHO) reacts with :(i) HCN

Answer 2

Acetaldehyde react with HCN to form cyanohydrin and react with hydrazine to form hydrazone.

1)

• Acetaldehyde is an aldehyde.

• Aldehyde react with HCN to form Cyanohydrin.

• It is a nucleophilic addition reaction.

• Here cyanide ion  is a stronger nucleophile and attack electrophilic region.

• This reaction is catalysed by base.

2)

• Hydrazine is derivative of ammonia.

• Aldehyde on reaction with hydrazine produce Hydrazone.

• It is also a nucleophilic addition reaction.

• Hydrazone can be converted to corresponding alkane by reacting with base and heat.Both reaction togrther gives wolff-kishner reduction.