1.

Which of the following is not a carbonate ore ?(1)   Calamine(2)   Siderite(3)   Bauxite(4)  Malachite

Answer»

Correct option (3)  Bauxite

Explanation:

Calamine : ZnCO3

  Siderite :  FeCO3

Bauxite :   AlOx(OH)3-2x(0 < x < 1)

Malachite  :  CuCO3 Cu (OH)2



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