MEDIUM
7th ICSE
IMPORTANT
Earn 100

Give two examples of the following:

solid-liquid mixture

Important Questions on Test Paper 2

MEDIUM
7th ICSE
IMPORTANT

Give two examples of the following:

liquid-liquid mixture

HARD
7th ICSE
IMPORTANT
Describe the properties of non-metals in terms of their physical state and hardness.
HARD
7th ICSE
IMPORTANT
What is CHNOPS?
EASY
7th ICSE
IMPORTANT
What is the common use of chlorine?
HARD
7th ICSE
IMPORTANT
What are the factors affecting evaporation?
HARD
7th ICSE
IMPORTANT

Identify each as a physical or chemical change:

Drying of clothes, burning of fuels, making curd from milk, mixing iron and sulphur, boiling an egg, sublimation of iodine.

MEDIUM
7th ICSE
IMPORTANT
What is a catalyst?
MEDIUM
7th ICSE
IMPORTANT
Mention the conditions (other than adding a catalyst) for a chemical reaction to occur.