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Question

Calamine, malachite, magnetite and cryolite, respectively are:

A
ZnSO4,Cu(OH)2,Fe3O4,Na3AlF6
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B
ZnCO3,CuCO3.Cu(OH)2,Fe3O4,Na3AlF6
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C
ZnSO4,CuCO3,Fe2O3,AlF3
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D
ZnCO3,CuCO3,Fe2O3,Na3AlF6
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