Symbol of iodine is:

Important Questions on Atoms and Molecules

EASY

9th CBSE

IMPORTANT

Essentials of Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions MCQs>Q 20

$\mathrm{Ca}$ is the symbol of:

EASY

9th CBSE

IMPORTANT

Essentials of Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions MCQs>Q 21

In one mole of a compound the number of molecules is:

EASY

9th CBSE

IMPORTANT

Essentials of Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions MCQs>Q 22

The mass of $1$ mole ${\mathrm{H}}_2$ is:

EASY

9th CBSE

IMPORTANT

Essentials of Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions MCQs>Q 23

The molecular mass of ${\mathrm{CO}}_2$ is:

EASY

9th CBSE

IMPORTANT

Essentials of Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions MCQs>Q 24

Molar mass of ${\mathrm{CO}}_2$ is

MEDIUM

9th CBSE

IMPORTANT

Essentials of Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions MCQs>Q 25

Formula of a compound formed by M⁺ and X^2- ions, is:

MEDIUM

9th CBSE

IMPORTANT

Essentials of Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions MCQs>Q 26

Sulphate ion is:

EASY

9th CBSE

IMPORTANT

Essentials of Chemistry>Chapter 3 - Atoms and Molecules>Multiple Choice Questions MCQs>Q 27

Carbonate ion is: