Calamine,malachite,magnetite and cryolite,respectively are

  • A
    $ZnSO_4, CuCO_3, Fe_2O_3, AlF_3$
  • B
    $ZnCO_3, CuCO_3 \cdot Cu(OH)_2, Fe_3O_4, Na_3AlF_6$
  • C
    $ZnSO_4, Cu(OH)_2, Fe_3O_4, Na_3AlF_6$
  • D
    $ZnCO_3, CuCO_3, Fe_2O_3, Na_3AlF_6$

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