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

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

April 15, 2024 by rawan239

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.

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