Chemistry · Metallurgy

Which of the following statements is true for the process of 'Roasting' carried out during the extraction of metals from their ores?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1The ore is heated strongly in the absence or limited supply of air.
2The ore is heated strongly below its melting point in the presence of excess air.✓
3Roasting is not used for sulphide ores.
4Roasting is primarily used for carbonate ores.

Correct answer

The ore is heated strongly below its melting point in the presence of excess air.

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