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Metals are refined by using different me...

Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?

A

I and ii

B

ii and iii

C

ii and iv

D

iii and iv

Text Solution

Verified by Experts

The correct Answer is:
a
Electrolytic refining is used for metals like Cu, Zn, Ag, AU etc. 
The method to be used for refining an impure metal depends on the nature of the metal as well as on the nature of impurities present in it.
So, metals Au (gold) and Cu (copper) are refined by electrolytic refining.
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