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Question

Which of the following is a carbonate ore?

A
Pyrolusite
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B
Malachite
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C
Diaspore
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D
Cassiterite
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Solution

The correct option is D Malachite
(A) Pyrolusite is MnO2
(B) Malachite is Cu(OH)2.CuCO3. It is carbonate ore.
(C) Diaspore ia Al2O3.H2O
(D) Cassiterite is SnO2

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