Identify the following substance:

Gas C gas an offensive smell like rotten eggs.

Copy and complete the following table relating to important industrial processes. Output refers to the product of the process, not the intermediate steps.

Making use only of a substance chosen from those given below:

Dilute                                      sulphuric acid sodium carbonate

Zinc                                         sodium sulphite

Lead                                         calcium carbonate

Give the equation for the reaction by which you could obtain:

(i)  Hydrogen

(ii)  Carbon dioxide

(iii)  Zinc carbonate (two steps required)

What is the property of concentrated sulphuric acid which allows it to be used in the preparation of hydrogen chloride and nitric acid?

What property  of concentrated sulphuric acid is in action when sugar turns black in its presence.

Write the equation for the following reactions:

Dilute sulphuric acid and barium chloride

Write the equation for the following reactions:

Dilute sulphuric acid and sodium sulphide.

Write the equation for the following reaction:

Aluminium nitride and water.

Copy and complete the following table relating to important industrial processes. Output refers to the product of the process, not the intermediate steps.

40.

What is the property of nitric acid which allows it to react with copper?