MEDIUM
10th ICSE
IMPORTANT
Earn 100

Write a balanced chemical equation for the following reaction:

Ammonium sulphate from ammonia and dilute sulphuric acid. 

Important Questions on Practice Paper-3

MEDIUM
10th ICSE
IMPORTANT

Write a balanced chemical equation for the following reaction:

Sodium chloride from sodium carbonate solution and dilute hydrochloric acid. 

EASY
10th ICSE
IMPORTANT

State one observation for the following: 

When hydrochloric acid is added to silver nitrate solution. 

EASY
10th ICSE
IMPORTANT

State one observation for the following:
When copper sulphide is treated with dilute hydrochloric acid. 

EASY
10th ICSE
IMPORTANT

State one observation for the following:

When ammonium hydroxide is added to ferrous hydroxide solution. 

EASY
10th ICSE
IMPORTANT

State one observation for the following:
When concentrated nitric acid is added to copper. 

EASY
10th ICSE
IMPORTANT

State one observation for the following:

When hydrogen sulphide gas is passed in a bottle containing concentrated sulphuric acid.

MEDIUM
10th ICSE
IMPORTANT

Calculate the weight of 10.0 g atoms of sodium.

MEDIUM
10th ICSE
IMPORTANT

Calculate the weight of 10 atoms of sodium.