EASY
7th ICSE
IMPORTANT
Earn 100

Write the formula of the following compound.

Sand

Important Questions on Elements, Compounds and Mixtures

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.
EASY
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 3 - Elements, Compounds and Mixtures>ASSESS YOURSELF>Q 5
What are the different groups of mixtures?
EASY
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 3 - Elements, Compounds and Mixtures>EVALUATE YOUR UNDERSTANDING>Q 1
Which of the following is a non-metal? 
EASY
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 3 - Elements, Compounds and Mixtures>EVALUATE YOUR UNDERSTANDING>Q 2
The symbol of lead is:
EASY
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 3 - Elements, Compounds and Mixtures>EVALUATE YOUR UNDERSTANDING>Q 3
The chemical formula of nitric acid is
EASY
7th ICSE
IMPORTANT
Innovative Chemistry>Chapter 3 - Elements, Compounds and Mixtures>EVALUATE YOUR UNDERSTANDING>Q 4
Which among the following is a heterogeneous mixture?