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प्रश्न
Zinc blende ore can be converted into zinc oxide by the process of ______.
पर्याय
roasting
hydrogenation
chlorination
calcination
MCQ
रिकाम्या जागा भरा
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उत्तर
Zinc blende ore can be converted into zinc oxide by the process of roasting.
Explanation:
Zinc blende is a sulphide ore composed essentially of zinc sulphide (ZnS). Sulphide ores are converted into metal oxides by heating them strongly below their melting point in the presence of excess air or oxygen, a process known as roasting. This chemical treatment successfully releases sulphur impurities as sulphur dioxide (SO2) gas, leaving solid zinc oxide behind.
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