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Calcination

Name the meth...

Question

Name the method used to obtain lead from its ore galena (lead sulphide).

A

Electrolytic refining

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B

Roasting

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C

Calcination

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D

Electrolytic reduction

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Solution

The correct option is B
Roasting

We use roasting process for sulphide ores. Roasting is a process of coversion of sulphide ores to its oxides by heating them strongly in the presence of excess of air.

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