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Question

Which among the given ores can be converted into metal oxide by calcination?​
(I) Galena (PbS)​
(II) Magnesite (MgCO3) ​
(III) Bauxite (Al2O3.2H2O)


A
(I) and (II)​
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B
Only II​
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C
Only I​
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D
(II) and (III)​
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