MEDIUM
7th ICSE
IMPORTANT
Earn 100

How can you justify that air is a mixture not a compound?

Important Questions on Elements, Compounds and Mixtures

MEDIUM
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 3 - Elements, Compounds and Mixtures>ASSESS YOURSELF>Q 1
What does the formula of compound signifies?
MEDIUM
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 3 - Elements, Compounds and Mixtures>ASSESS YOURSELF>Q 2

Write the formula of the following compound.

Sugar

EASY
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 3 - Elements, Compounds and Mixtures>ASSESS YOURSELF>Q 2

Write the formula of the following compound.

Washing soda

EASY
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 3 - Elements, Compounds and Mixtures>ASSESS YOURSELF>Q 2

Write the formula of the following compound.

Marble

EASY
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 3 - Elements, Compounds and Mixtures>ASSESS YOURSELF>Q 2

Write the formula of the following compound.

Sand

MEDIUM
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 3 - Elements, Compounds and Mixtures>ASSESS YOURSELF>Q 3

Explain the valency in the following compound:

Ammonia

MEDIUM
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 3 - Elements, Compounds and Mixtures>ASSESS YOURSELF>Q 3

Explain the valency in the following compound:

Methane

MEDIUM
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 3 - Elements, Compounds and Mixtures>ASSESS YOURSELF>Q 4
Draw the flow chart of chemical mixtures.