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 ?

Options

A. Metal sulphides are less stable that the corresponding oxides
B. Metal sulphides are thermodynamically more stable than `CS_(2)`
C. `CO_(2)` is thermodynamically more stable than `CS_(2)`
D. `CS_(2)` is less volatile than `CO_(2)`

Answer

B

Explanation

The other three options are the reasons.