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प्रश्न
The process that involves the removal of sulphur from the ores is ______.
पर्याय
Refining
Roasting
Smelting
Leaching
MCQ
रिकाम्या जागा भरा
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उत्तर
The process that involves the removal of sulphur from the ores is roasting.
Explanation:
Roasting is the process of heating sulphide ores in the presence of air. During roasting, sulphur is oxidised to sulphur dioxide (SO2) and escapes as gas. Thus, roasting helps in removing sulphur and converting the ore into its oxide form for further reduction.
\[\ce{2ZnS + 3O2 -> 2ZnO + 2SO2 \uparrow}\]
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