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JEE CHEMISTRY MCQ: GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
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Medium
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Analyzing
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Which of the following factors is of no significance for roasting sulphide ores to the oxides and not subjecting the sulphide ores to carbon reduction directly?
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Correct option: C
Metal sulphides are less stable than the corresponding oxides
Option C (Metal sulphides are less stable than the corresponding oxides) is the factor of no significance because metal sulfides are generally *more* stable than their corresponding oxides, which is why roasting is necessary.