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

MEDIUM

11th CBSE

IMPORTANT

Earn 100

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

50% studentsanswered this correctly

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 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?

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>Competition Focus>Q 9

Predict the correct order of repulsions among the following:

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>Competition Focus>Q 10

Total number of lone pairs of electrons in

{I_{3}}^{-}

ion is

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>Competition Focus>Q 11

The strength of the covalent bond in $H_{2}$ , $F_{2}$ and $HF$ is in the order

HARD

11th CBSE

IMPORTANT

Pradeep's Chemistry Vol 1>Chapter 4 - Chemical Bonding and Molecular Structure>Competition Focus>Q 12

The number and type of bonds between two carbon atoms in calcium carbide are