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Chemistry Question on Aldehydes, Ketones and Carboxylic Acids

Given below are two statements:

Statement I

under Clemmensen reduction conditions will give

Statement II

under Wolff-Kishner reduction condition will give

In the light of the above statements, choose the correct answer from the options given below:

A

Statement I is true but Statement II is false

B

Statement I is false but Statement II is true

C

Both Statement I and Statement II are true

D

Both Statement I and Statement II are false

Answer

Statement I is true but Statement II is false

Explanation

Solution

The correct option is (A): Statement I is true, but Statement II is false.

Statement I : Under Clemmensen reduction conditions, aldehyde and keto groups are reduced to the corresponding hydrocarbons in the presence of zinc amalgam (Zn/Hg) and hydrochloric acid (HCl).

Statement II : Under Wolff-Kishner reduction conditions, aldehyde and keto groups are reduced to the corresponding hydrocarbons using hydrazine (NH2) and a strong base like potassium hydroxide (KOH) at high temperatures.