Question

Correct the following statements.
For example: 'Chlorine is a bleaching agent'.
Should read: 'Moist chlorine is a bleaching agent'.
Haematite is the chief ore of aluminium

Answer 1

Haematite:
1. Haematite has a chemical formula ${\text{Fe}}_2{\text{O}}_3$.
2. It is the ore of the element, Iron.
Bauxite:
1. Bauxite has a chemical formula ${\text{Al}}_2{\text{O}}_3.2{\text{H}}_2\text{O}$.
2. It is called the chief ore of Aluminium.
Correct statement:
Bauxite is the chief ore of Aluminium.