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प्रश्न
A sulphide ore is converted into metal oxide by the process of ______.
पर्याय
carbonation
roasting
calcination
anodising
MCQ
रिकाम्या जागा भरा
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उत्तर
A sulphide ore is converted into metal oxide by the process of roasting.
Explanation:
Roasting is the chemical process of converting a sulphide ore into a metal oxide by heating it strongly below its melting point in the presence of excess air or oxygen. This reaction drives away sulphur impurities as volatile sulphur dioxide (SO2) gas, leaving behind the metal oxide, which is far easier to reduce into pure metal.
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