Physical Properties of Amines

IMPORTANT

Physical Properties of Amines: Overview

In this topic, we will study physical properties of amines, including the primary and secondary amines along with intermolecular hydrogen bonding. It also contains comparison of boiling point of amines, alcohols and alkanes of similar molecular masses.

Important Questions on Physical Properties of Amines

MEDIUM
IMPORTANT

CH3CH2NH2 is soluble in which of the following compound?

EASY
IMPORTANT

Among the following molecules with the same molecular weight, which one has the highest boiling point?

HARD
IMPORTANT

Explain briefly about the odour of amines?

HARD
IMPORTANT

Explain briefly about the colour of aryl amines?

HARD
IMPORTANT

Arrange the following compounds in the decreasing order of their basic nature in gaseous phase. Ammonia, N - methylethanamine, propan - I - amine and N, N - dimethylmethanamine 

HARD
IMPORTANT

Arrange the following amines in the increasing order of their pKb values

aniline, 4 - methoxyaniline and 4 - nitroaniline

HARD
IMPORTANT

Arrange the following amines in the increasing order of their pKb values

Phenylmethylamine, 2 - Aminotoluene and 2 - Fluoroaniline

HARD
IMPORTANT

Arrange the following compounds in the decreasing order of their boiling points

Ethyl alcohol, ethylamine and diethylamine

HARD
IMPORTANT

Arrange the following compounds in the decreasing order of their boiling points

Ethylamine, n-propylamine, n-butylamine

HARD
IMPORTANT

Arrange the following compounds in the decreasing order of their boiling points

Ethane, ethylamine, and ethyl alcohol

HARD
IMPORTANT

Arrange the following compounds in the decreasing order of their solubility in water

n-butane, n-butyl alcohol and n-butylamine

HARD
IMPORTANT

Give plausible explanation for the statements.​​​​​​ Butan - 1 - amine has higher boiling point than N - Ethylethanamine.

HARD
IMPORTANT

Give plausible explanation for the statements.-Butan - 1 - ol is more soluble in water than Butan - 1 - amine.

HARD
IMPORTANT

Give plausible explanation for the statement-Ethylamine is soluble in water whereas aniline is not.

HARD
IMPORTANT

Arrange the following compounds in the decreasing order of their solubility in water

ethylamine, n-propylamine and n-butylamine

HARD
IMPORTANT

Arrange the following compounds in the decreasing order of their solubility in water

ethylamine, diethylamine and triethylamine

HARD
IMPORTANT

Choose the correct statements among the following:

MEDIUM
IMPORTANT

If A is C2H5NH2, B is C2H52NH, C is C2H53N, then order of solubility in water is:

MEDIUM
IMPORTANT

Which of the following statement is correct about the basic strength on the basis of given data ?

Question Image

The correct pKa order is -

MEDIUM
IMPORTANT

Which among the following has the highest boiling point?