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Which of the following processes is used to purify lead?

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in Chemistry – Class 12 by (188k points)
Which of the following processes is used to purify lead?

(a) Distillation

(b) Liquation

(c) Electrolytic refining

(d) Zone refining

I got this question during an internship interview.

Enquiry is from Refining topic in chapter General Principles and Processes of Isolation of Elements of Chemistry – Class 12

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The correct option is (b) Liquation

To explain I would say: Liquation is used for purification of metals that contain impurities which are less fusible than the metals themselves, that is, the melting points of the metals are lower than that of the impurities. Lead is refined by liquation process.

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