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  • Which of the following pairs of ‘ore-corresponding chemic...
Multiple choice

Which of the following pairs of ‘ore-corresponding chemical formula’ is wrong?

  1. Bauxite - Al2O3.3H2O

  2. Lanarkite - PbO.PbSO4

  3. Crocoisite - PbCrO4

  4. Cuprite - Cu2O

  5. Calamine - ZnCO3

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A Correct answer
Explanation

Bauxite (Al2O3.2H2O) is the ore of aluminium. The chemical formula for gibbsite is Al2O3.3H2O.

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