Which of the following metals is not refined by electrolytic refining?

N a

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A u

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C u

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A l

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Solution

The correct option is B $N a$
The sodium and chloride produced in the electrolysis are kept from coming in contact with each other as the sodium is highly reactive and it must be prevented from coming in contact with oxygen as the metal quickly oxidizes under high temperature conditions.

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Similar questions

A u

C u

N a

K

Question 12
Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?

(i) $A u$
(ii) $C u$
(iii) $N a$
(iv) $K$

(a) (i) and (ii) (b) (i) and (iii)

Question 12
Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?

(i) $A u$
(ii) $C u$
(iii) $N a$
(iv) $K$

(a) (i) and (ii) (b) (i) and (iii)

Which of the following metals is refined by electrolytic refining?

Out line the principles of refining metals by the following method:

Zone refining

Electrolytic refining

Vapour phase refining

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