EASY
9th CBSE
IMPORTANT
Earn 100

Explain the term 'crystallization' used for the separation of mixtures.
Important Questions on Is Matter Around Us Pure?
EASY
9th CBSE
IMPORTANT
Explain the term 'Evaporation' used for the separation of mixtures.

EASY
9th CBSE
IMPORTANT
Explain the term 'Sublimation' used for the separation of mixtures.

EASY
9th CBSE
IMPORTANT
Explain the term 'centrifugation' used for the separation of mixtures.

EASY
9th CBSE
IMPORTANT
Explain the difference between a compound and a mixture.

MEDIUM
9th CBSE
IMPORTANT
Explain the difference between homogeneous and heterogeneous mixture.

MEDIUM
9th CBSE
IMPORTANT
Explain the differences between colloids and solutions.

MEDIUM
9th CBSE
IMPORTANT
Explain the difference between physical and chemical change.

HARD
9th CBSE
IMPORTANT
Define element, compound and mixture. Give two differences between homogeneous and heterogeneous mixtures. Identify each of the following substance as mixture, compound or element:
(i) Sugar
(ii)mercury
(iii) tea
(iv)sulphur
(v) milk
(vi) silver
(vii) table salt
(viii) wood
(ix) smoke
(x) boron.
