HARD
7th CBSE
IMPORTANT
Earn 100

Write the name of the following compound:

Important Questions on Physical and Chemical Changes
HARD
7th CBSE
IMPORTANT
Write the name of the following compound:

HARD
7th CBSE
IMPORTANT
Write the name of the following compound:

HARD
7th CBSE
IMPORTANT
Write the name of the following compound:

HARD
7th CBSE
IMPORTANT
What are the evidences of a chemical reaction?

EASY
7th CBSE
IMPORTANT
List the differences between physical and chemical changes.

HARD
7th CBSE
IMPORTANT
Name the types of chemical reactions. Explain any one of them with a chemical equation.

HARD
7th CBSE
IMPORTANT
Explain crystallisation.

HARD
7th CBSE
IMPORTANT
EUREKA PLUS Revised Bringing Science to Life>Chapter 6 - Physical and Chemical Changes>HIGHER ORDER THINKING SKILLS
(nitric acid):
An example has been done for you:
(carbon dioxide): atom of carbon atoms of oxygen.
