Question

Correct the following statement:

For example: Chlorine is a bleaching agent.

Should read: Moist chlorine is a bleaching agent.

Haematite is the chief source of aluminium.

Answer 1

• Hematite is the ore of the iron as its purification yields oxides of iron.
• Iron oxide is extracted from the hematite by heating it with aluminum.
• The chief source of aluminium is Bauxite.

Thus, the correct statement is:

Hematite is the chief source of Iron.

(or)

Bauxite is the chief source of aluminium.