GUJCET 2018 Chemistry Solved Paper

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Question : 40 of 40

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Which is the correct order of metallurgy for the extraction of copper metal?

Concentration → smelting → bessimerisation → roasting
Concentration → smelting → roasting → bessimerisation
Concentration → roasting → smelting → bessimerisation
Concentration → roasting → bessimerisation → smelting

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