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

MEDIUM

9th CBSE

IMPORTANT

Earn 100

What is the significance of the symbol of an element?

Important Questions on Atoms and Molecules

EASY

9th CBSE

IMPORTANT

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

Define relative atomic mass of an element.

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 4

Define molecule and atomicity.

HARD

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 5

State the properties of ionic compounds.

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 6

Give the atomicity of

{CH}_{4}

.

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 6

Give the atomicity of

{SO}_{3}

.

EASY

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 6

Give the atomicity of

{PH}_{3}

.

MEDIUM

9th CBSE

IMPORTANT

LIVING SCIENCE CHEMISTRY 9>Chapter 3 - Atoms and Molecules>EXERCISES>Q 7

A compound's chemical formula is ${Ni}_{2} O_{3}$ . Name the elements present in the compound. Name the compound represented by the formula. What is the valency of $Ni$ in this compound?

HARD

9th CBSE

IMPORTANT

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

The formula of nickel(

II

) nitrate is

Ni ({NO}_{3})_{x}

. The value of

x

is? (Give the answer in numeral)