1.

The one that is not a carbonate ore is : (1) malachite (2) bauxite (3) calamine (4) siderite 

Answer»

Correct option (2) bauxite

Explanation:

Malachite = CuCO3. Cu(OH)2

Bauxite = Al2O3 . 2H2O or AlOx . (OH)3–2x (where D < x < 1)

Calamine = ZnCO3

Siderite = FeCO3

∴ is Bauxite option-2.



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