LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 8

EASY

9th CBSE

IMPORTANT

Earn 100

Give the correct formula of zinc carbonate.

A. $ZnCO$

B. ${ZnCO}_{3}$

C. $Zn {({CO}_{3})}_{2}$

"Enter your correct answer as A, B or C."

80% studentsanswered this correctly

Important Questions on Atoms and Molecules

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 8

The formula of aluminium sulphate is

{Al}_{2} ({SO}_{4})_{k}

. Here, the value of

k

is

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 9

Calculate the molecular mass of

H_{2} {SO}_{4}

and

H_{3} {PO}_{4}

.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 10

How will you calculate mass percentage of an element?

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 11

Give the values of molecular mass of

{CO}_{2}

and gram-molecular mass of

{CO}_{2}

.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 12

How will you calculate molar mass of a substance and number of moles of a substance?

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 1

Define atom.

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 1

Define nucleus of an atom

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>Practice Questions>Q 2

What is the radius of an atom?