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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

Alyminium

B

Bismuth

C

Tin

D

Lead

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The correct Answer is:
A
Metals like Na , K , Mg , Cl , Al etc , are reduced by electrolytic method .
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Read the following and answer any four questions During extraction of metals, electrolytic refining is used to obtain pure metals. During the process, the impure metal is made the anode and a thin strip of pure metal is made the cathode. The solution of the metal salt is used as an electrolyte. On passing the current through the electrolyte, the pure metal from the anode dissolves from the electrolyte. An equivalent of pure metal from the electrolyte is deposited on the cathode. Which of the metals are refined by electrolytic refining? (i) Au (ii) Cu (iii) Na (iv) K

During extraction of metals, electrolytic refining is used to obtain pure metals. During the process, the impure metal is made the anode and a thin strip of pure metal is made the cathode. The solution of the metal salt is used as an electrolyte. On passing the current through the electrolyte, the pure metal from the anode dissolves from the electrolyte. An equivalent of pure metal from the electrolyte is deposited on the cathode. Which of the metals are refined by electrolytic refining? I. Au II. Cu III. Na IV. K

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