Question

Explain electrolytic refining method

Answer 1

Here is your answer

-->The apparatus consist of Electrolytic tank containing acidified copper sulphate solution as electrolyte.

--> A thick block of impure copper metal is made anode .

---> A thin strip of pure copper metal is made as cathode.

On passing electricity, Impure copper from the anode dissolves and goes into CUSO4 solution and pure copper from the copper sulphate solution deposits on the cathode .

Thus pure copper metal is produced at cathode . The soluble impurities goes into the solution whereas insoluble impurities settles down at anode as anode mud.

Chemical reaction :

At cathode : Cu²⁺ + 2e ---->Cu

At anode : Cu - 2e---->Cu²⁺

Answer 2

ELECTROLYTIC REFINING IS THE PROCESS OF REFINING A METAL BY THE ELECTROLYSIS OF A SOLUTION OF THE SALT OF THE METAL ,USING A SMALL PIECE OF PURE METAL AS THE NEGATIVE ELECTRODE AND THE IMPURE METAL AS THE POSITIVE ELECTRODE.COPPER CAN BE REFINED THROUGH THIS METHOD.

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