Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 2

EASY

9th CBSE

IMPORTANT

Earn 100

If the valency of nitrogen is $3$ and that of hydrogen is $1$ , write down the formula for ammonia.

Important Questions on Atoms and Molecules

MEDIUM

9th CBSE

IMPORTANT

Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 3

An element has $X$ has a valency of $4$ , while another element $Y$ has a valency of $1$ . What will be the formula of the compound formed between $X$ and $Y$ ?

MEDIUM

9th CBSE

IMPORTANT

Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 4

An element $A$ of valency $3$ combines with another element $B$ of valency $2$ . What will be the formula of the compound formed?

HARD

9th CBSE

IMPORTANT

Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 5

The formula of carbonate of a metal $M$ is $M_{2} {CO}_{3}$ . What will be the formula of its chloride?

HARD

9th CBSE

IMPORTANT

Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 6

If the aluminium salt of an anion $X$ is ${Al}_{2} X_{3}$ , what is the valency of $X$ ? What will be the formula of the magnesium salt of $X$ ?

MEDIUM

9th CBSE

IMPORTANT

Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 7

An element $X$ has a valency of $4$ . Write the formula of its chloride.

MEDIUM

9th CBSE

IMPORTANT

Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 7

An element

X

has a valency of

4

. Write the formula of its oxide.

HARD

9th CBSE

IMPORTANT

Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 7

An element $X$ has a valency of $4$ . Write the formula of its sulphate.

MEDIUM

9th CBSE

IMPORTANT

Chemistry for Class IX>Chapter 3 - Atoms and Molecules>Exercise>Q 7

An element $X$ has a valency of $4$ . Write the formula of its carbonate.