For purification of impure metals by the process of electrolysis

Salt solution of the impure metal is taken as an electrolyte

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Salt solution of that metal in pure form is taken as an electrolyte

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That metal in pure form is made as anode

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Both

(1)

and

(3)

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Solution

The correct option is B Salt solution of that metal in pure form is taken as an electrolyte
When an impure metal is purified using electrolytic refining impure metal is used as anode and pure metal is used as cathode and the salt solution of same metal in pure form that is being purified is taken as electrolyte.
Therefore, B is correct option.

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Similar questions

Q. Fill in the blanks by selecting the option with the correct words.
The process of removing impurities from impure metal to obtain pure metal is known as ______ of metal. The most widely used method for refining is ______. In this method, the impure metal is taken as ______ and the pure metal is taken as ______.

In general, electrolytic refining is a process of purification of impure metal during which an electric current is passed through an electrolytic cell which contains impure metal as anode, a suitable electrolyte and pure metal as cathode.

Q. In the electrolytic refining of metals, electrolysis of an aqueous solution of its complex salt is done with impure metal as anode and a strip of pure metal as cathode. This method cannot be used for the refining of:

The diagram shows the process of purification of copper metal. A thick copper plate

A

of impure copper and a thin copper plate

B

are immersed in a metal sulphate solution and an electric current is passed through it. Which metal solution is taken as electrolyte ?

In the process of purification of copper metal, a thin plate of pure copper and a thick rod of impure copper are used as electrodes, and a metal salt solution is used as an electrolyte :
(a) Which electrode is connected to the positive terminal of the battery ?
(b) Which electrode is connected to the negative terminal of the battery ?
(c) Which metal salt solution is taken as electrolyte ?

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