Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>ADDITIONAL QUESTIONS>Q 25

HARD

11th CBSE

IMPORTANT

Earn 100

Given reason for the following: Boiling point of $HCl$ is less than $HF$ as well as $HBr$ .

Important Questions on Chemical Bonding and Molecular Structure

EASY

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>Competition Focus>Q 1

It is believed that atoms combine with each other such that outermost shell acquires stable configuration of

8

electrons. If stability were attained with

6

electrons rather than

8

, what would be the formula of the stable fluoride ion?

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>Competition Focus>Q 2

In which of the following compounds does the central atom obey the octet rule?

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>Competition Focus>Q 3

Based on lattice energy and other considerations, which one of the following alkali metal chlorides is expected to have the highest melting point?

MEDIUM

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>Competition Focus>Q 4

Which of the following species contains three bond pairs and one lone pair around the central atom?

EASY

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>Competition Focus>Q 5

In which of the following, the central atom has two lone pairs of electrons?

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>Competition Focus>Q 6

The number of lone pairs of electrons on the central atoms of

H_{2} O, {SnCl}_{2}, {PCl}_{3}

and

{XeF}_{2}

respectively.

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>Competition Focus>Q 7

Which of the following compounds contain(s) no covalent bond(s)?

$KCl, {PH}_{3}, O_{2}, B_{2} H_{6}, H_{2} {SO}_{4}$

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>Competition Focus>Q 8

Which of the following has a regular geometry?