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Grade upto college level Physical Chemistry

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? i. Metal sulphides are less stable than the corresponding oxides. ii. CO2is more volatile than CS2. iii. Metal sulphides are thermodynamically more stable than CS2. iv. CO2is thermodynamically more stable than CS2.

Profile image of aditya kashyap
12 Years agoGrade upto college level
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1 Answer

Profile image of Gaurav
11 Years ago
Hello Student
Metal sulphides are more stable than corresponding oxides and that is why it is more difficult to extract metal from sulphide ore. To make the extraction easy and economical , first these sulphides are converted into corresponding oxides and from these oxides metal is easily extracted by reducing them with carbon.

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