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Question

Metals that are refined by liquation are:

A
Si
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B
Pb
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C
Sn
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D
Bi
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Solution

The correct options are
A Sn
B Bi
C Pb
Liquation is applicable for metals such as Sn,Pb and Bi, which have low melting points as compared to their impurities. Si has a high melting point. So, liquation can not be used for its refining.

Options B,C and D are correct.

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