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Which of the following faction is of no...

Which of the following faction is of no significance for roasting sulphide ores to the oxide and not subjecting the sulphide ores in carbon reduction directly ?

A

`CO_(2)` is more volatile than `CS_(2)`

B

Metal sulphides are thermodynamically more stable than `CS_(2)`

C

`CO_(2)` is thermodynamically more stable than `CS_(2)`

D

Metal sulphides are less stable than the corresponding oxides

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