Which one of the following pairs is not correctly matched? A. Haematite : Copper B. Bauxite : Aluminium C. Monazite : Thorium D. Pitchblende : Uranium

Haematite : Copper
Bauxite : Aluminium
Monazite : Thorium
Pitchblende : Uranium

The correct answer is: A. Haematite : Copper

Haematite is an iron ore, while copper is a metal. Copper is not found in haematite.

Bauxite is an ore of aluminium, while aluminium is a metal. Aluminium is found in bauxite.

Monazite is an ore of thorium, while thorium is a radioactive metal. Thorium is found in monazite.

Pitchblende is an ore of uranium, while uranium is a radioactive metal. Uranium is found in pitchblende.