Q.

Which one of the following pairs is NOT correctly matched?

A. Haematite : Copper
B. Bauxite : Aluminium
C. Monazite : Thorium
D. Pitchblende : Uranium
Answer» A. Haematite : Copper
Explanation: Haematite is the mineral form of iron oxide (Fe2O3), one of several iron oxides. It is mined as the main ore of iron. Hematite is harder than pure iron, but much more brittle.
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