EASY
7th CBSE
IMPORTANT
Earn 100

Define the following terms

Atom

Important Questions on Chemicals and Chemical Changes

EASY
7th CBSE
IMPORTANT
The Science Hub>Chapter 4 - Chemicals and Chemical Changes>Exercises>Q 1

Define the following terms:

Atomicity

HARD
7th CBSE
IMPORTANT
The Science Hub>Chapter 4 - Chemicals and Chemical Changes>Exercises>Q 1
Define the following term: Valency
MEDIUM
7th CBSE
IMPORTANT
The Science Hub>Chapter 4 - Chemicals and Chemical Changes>Exercises>Q 1
Define the following term.
Galvanisation
MEDIUM
7th CBSE
IMPORTANT
The Science Hub>Chapter 4 - Chemicals and Chemical Changes>Exercises>Q 1
Define the following term:

crystallisation

MEDIUM
7th CBSE
IMPORTANT
The Science Hub>Chapter 4 - Chemicals and Chemical Changes>Exercises>Q 2

Distinguish between Physical and Chemical change.

MEDIUM
7th CBSE
IMPORTANT
The Science Hub>Chapter 4 - Chemicals and Chemical Changes>Exercises>Q 2
Differentiate between the following:
Element and compound
 
MEDIUM
7th CBSE
IMPORTANT
The Science Hub>Chapter 4 - Chemicals and Chemical Changes>Exercises>Q 2

Differentiate between:

Atoms and molecule

MEDIUM
7th CBSE
IMPORTANT
The Science Hub>Chapter 4 - Chemicals and Chemical Changes>Exercises>Q 2
Differentiate between the following:
Mixture and compound