ICSE ICSE Class 7 - CISCE Question Bank Solutions for Chemistry

Write ‘True’ or ‘False’ in front of following statement.  

Brass is an alloy of copper and zinc and has lustrous yellow colour. 

Write ‘True’ or ‘False’ in front of following statement. 

Magnesium is used in making light weight alloys of aluminium. 

Tick (√) the most appropriate answer. 

Graphite is used :

Name a metal which is not malleable : 

Name a metal which is best conductor of electricity :  

State two important uses of following metal: 

Uses of gold  

State two important uses of following metal: 

Uses of silver  

State two important uses of following metal. 

Uses of copper  

State two important uses of following metals: 

Uses of iron   

State two important uses of following metal 

Uses of tin  

State two important uses of following metal: 

Uses of zinc  

State two important uses of following metal:

Uses of aluminium

State two important uses of following metal 

Uses of lead     

State two important uses of following metal 

Uses of magnesium  

State two important uses of following metal

Uses of mercury  

Give two examples of non-metallic oxides.

State one method by which :

1. Oxygen is added to air
2. Carbon dioxide is added to air
3. Oxygen is removed from the air
4. Carbon dioxide is removed from the air

Give reasons to support the fact that air is a mixture.

Name the products formed when a candle burns in air.

Discuss two useful applications of greenhouse effect.