Choose the correct statement(s) for Wolff Kishner Reaction.
(A) The carbonyl group of aldehyde and ketone is reduced to $CH_2$ group.
(B) Wolff Kishner Reaction involves potassium hydroxide and ethylene glycol
(C) The reaction is carried out at a low temperature.
(D) Hydrazine is used in this reaction.
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → (A), (B) and (D) only
The carbonyl group of aldehydes and ketones is reduced to $CH_2$ group on treatment with hydrazine followed by heating with sodium or potassium hydroxide in high boiling solvent such as ethylene glycol this reaction is called Wolff-Kishner reduction.
The reaction is not carried at low temperature.
$ \text{R}_2\text{C=O}\overset{{\text{NH}_2\text{NH}_2,-\text{H}_2\text{O}}}{\longrightarrow}\text{R}_2\text{C=NNH}_2\frac{{\text{KOH/ethylene glycol}}}{\text{heat}}\longrightarrow\text{R}_2\text{CH}_2+\text{N}_2\quad(\text{Wolff-Kishner reduction}) $
Correct statements are A, B, D