Question:

A compound $(X)$ with molecular formula $C_3H_9N$ reacts with $C_6H_5SO_2Cl$ to give a solid which is insoluble in alkali. $(X)$ is

Updated On: Feb 27, 2024
  • $CH_3CH_2CH_2NH_2$
  • $CH_3 - NH - CH_2CH_3$
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The Correct Option is C

Solution and Explanation

Since the compound reacts with benzenesulphonyl chloride to give a product which is insoluble in alkali, it shows there is no $H$ attached to $N$ in the product. Hence, the compound $X$ is a secondary amine.
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Concepts Used:

Amines

Amine is a type of compound which is derived from ammonia (NH3). According to Organic chemistry, they are basically classified as the functional groups of the organic nitrogen compounds that contain nitrogen atoms with a lone pair.

Amine - Types

Primary Amines:

It is formed when one hydrogen atom in ammonia is substituted by an alkyl or aromatic group. Amino acids and methyl amine are the best examples that why aromatic amines include aniline.

Secondary Amines:

Amines that have two organic substitutes either alkyl or aryl ones or both and are bound to the nitrogen together with one hydrogen are termed as secondary amines. For Example, Dimethylamine.

Tertiary Amines:

Tertiary Amines are the amines where the nitrogen consists of three organic substitutes. For example, Trimethylamine and EDTA.