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Among the following statements the correct statements is (are)

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Calamine, siderite, malachite are carbonate ores

Celestite, Anglesite are sulphate ores

Alumina can be purified by Baeyers process and Hall’s process

The alloy of zinc metal is Brass

answer is A, B, C, D.

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Detailed Solution

1) calamine (ZnCO₃) siderite (FeCO₃) malachite CuCO₃.Cu(OH)₂

2) celestite (SrSO₄₎ anglesite (PbSO₄)

3) Brass (Cu + Zn)

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