(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

Name a nitride of a divalent metal which reacts with warm water liberating ammonia.

Name an amphoteric oxide reduced by the basic gas.

Name a white salt produced by an acid gas and a basic gas.

Complete the following equation.
Mg₃N₂ + 6H₂O →

Complete the following equation.
8NH₃ +3Cl₂ →

What are the main refrigerants used and how do they cause ozone deplation?

What is the alternative of chlorofluorocarbon?

State the advantages of using ammonia as refrigerant?

Ammonia is a good refrigerant but it shows some disadvantages when used as refrigerant. State the disadvantages.

Write the equation for the action of heat on ammonium chloride.

State whether the reaction is an example of thermal decomposition or thermal dissociation.

Write the equation for the action of heat on ammonium nitrate.

State whether the reaction is an example of thermal decomposition or thermal dissociation.

Comment, sulphuric acid is referred to as King of chemicals.

Comment, sulphuric acid is referred to as oil of vitriol.

Correct the following, if required:

HNO₃ is a strong reducing agent.

Correct the following, if required:

NaNO₃ gives NO₂ and O₂ on heating.

Correct the following, if required:

Constant boiling nitric acid contains 80% nitric acid by weight.

Correct the following, if required: 

Nitric acid remains colourless even when exposed to light.

Name a nitrate of metal which on heating does not give nitrogen dioxide.

Name a nitrate which on heating leaves no residue behind. 

From the following list of substances, choose one substance in each case which matches the description given below:  

Ammonium nitrate, calcium hydrogen carbonate, copper carbonate, lead nitrate, potassium nitrate, sodium carbonate, sodium hydrogen carbonate, zinc carbonate. 

A nitrate which gives off only oxygen when heated