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Question

Chemistry Question on General Principles and Processes of Isolation of Elements

Calamine, malachite, magnetite and cryolite, respectively, are

A

ZnSO4,CuCO3,Fe2O3,AlF3ZnSO_4, CuCO_3, Fe_2O_3, AlF_3

B

ZnSO4,Cu(OH)2,Fe3O4,Na3AlF6ZnSO_4, Cu(OH)_2, Fe_3O_4, Na_3AlF_6

C

ZnCO3,CuCO3⋅Cu(OH)2,Fe3O4,Na3AlF6ZnCO_3, CuCO_3\cdot Cu(OH)_2, Fe_3O_4, Na_3AlF_6

D

ZnCO3,CuCO3,Fe2O3,Na3AlF6ZnCO_3, CuCO_3, Fe_2O_3, Na_3AlF_6

Answer

ZnCO3,CuCO3⋅Cu(OH)2,Fe3O4,Na3AlF6ZnCO_3, CuCO_3\cdot Cu(OH)_2, Fe_3O_4, Na_3AlF_6

Explanation

Solution

CuCO3⋅Cu(OH)2→CuCO_{3}\cdot Cu\left(OH\right)_{2} \to Malachite
Fe3O4→Fe_{3}O_{4} \quad\to Magnetite
ZnCO3→ZnCO_{3} \quad\to Calamine
Na3AlF6→Na_{3}AlF_{6} \quad \to Cryolite