______ is the process of heating the ore at a temperature below its melting point in excess of air or oxygen.

Calcination

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Roasting

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Electrolysis

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Reduction

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Solution

The correct option is B Roasting
Roasting is the process of heating the ore at the temperature below its melting point in excess of air or oxygen.
Sulphide ores are transformed into their oxides by this process.

For example, zinc sulphide is converted to zinc oxide by heating it in the excess of air or oxygen.

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Similar questions

Heating an ore in a limited supply of air or in the absence of air at a temperature just below its melting, point is known as:

Heating an ore in a limited supply of air or in the absence of air at a temperature just below its melting point is known as

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