Chromium is obtained by reducing purified chromite ore with

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red-hot coke

gaseous hydrogen

aluminum powder

carbon monoxide

answer is C.

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Detailed Solution

Chromite ore FeO⋅Cr2O3is first converted into free Cr2O3. It is then reduced by Al to pure chromium metal.Cr2O3+2Al→Al2O3+2Cr

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