Q: What is the IUPAC name of $\text{CH}3-\text{CH}2-\text{NH}2$?

The IUPAC name of $\text{CH}3-\text{CH}2-\text{NH}2$ is Ethanamine. It consists of a two-carbon ethyl group attached to an amino group.

Q: Which of the following amines does not react with Hinsberg's reagent?

Tertiary amines ($\text{R}3\text{N}$) do not react with Hinsberg's reagent (benzene sulphonyl chloride) because they lack replaceable hydrogen atoms on the nitrogen atom.

Question 1

Which of the following represents the general formula of aliphatic primary amines?

Accepted Answer

The general formula of aliphatic primary amines is $R-NH2$, where $R$ is an alkyl group. They contain a primary amino group attached to an alkyl chain.

Question 2

What is the IUPAC name of $	ext{CH}3-	ext{CH}2-	ext{NH}2$?

Accepted Answer

The IUPAC name of $	ext{CH}3-	ext{CH}2-	ext{NH}2$ is Ethanamine. It consists of a two-carbon ethyl group attached to an amino group.

Question 3

Which of the following reagents is used in the Carbylamine test?

Accepted Answer

The Carbylamine test uses chloroform and alcoholic potassium hydroxide ($	ext{CHCl}3$ and alcoholic $	ext{KOH}$) to test for primary amines.

Question 4

Aniline reacts with bromine water to give:

Accepted Answer

Aniline reacts with bromine water to form a white precipitate of 2,4,6-tribromoaniline due to the high activating effect of the amino group.

Question 5

Which of the following amines does not react with Hinsberg's reagent?

Accepted Answer

Tertiary amines ($	ext{R}3	ext{N}$) do not react with Hinsberg's reagent (benzene sulphonyl chloride) because they lack replaceable hydrogen atoms on the nitrogen atom.

Amines — MP Board Class 12 Chemistry Important Questions & Revision Notes