How sulphide ores are converted into oxides?

By decomposition

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By heating in presence of excess air

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By heating in absence of air

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None of the above

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Solution

The correct option is B By heating in presence of excess air
This process is known as roasting. Sulphide ores are converted to oxides by heating in presence of excess air.

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The sulphide ores are converted into oxides by heating them strongly in the presence of excess air. This process is called

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