You have a wire of pure copper and a block of impure copper. How will you clean the impure copper?

Set up an electroplating circuit with carbon as negative terminal

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Set up an electroplating circuit with clean copper as positive terminal dipped in copper sulphate solution

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Set up an electroplating circuit with clean copper as negative terminal dipped in lemon juice solution.

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Set up an electroplating circuit with clean copper as negative terminal dipped in copper sulphate solution

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Solution

The correct option is D
Set up an electroplating circuit with clean copper as negative terminal dipped in copper sulphate solution

Clean copper as negative terminal dipped in copper sulphate solution will get only pure copper from the block of impure copper.

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Similar questions

During electroplating the copper plate on the negative terminal gains weight and positive terminal having the copper plate loses weight. If this journey happens continuously what will happen to the positive copper plate as it will loose all the copper ions it contains? Will it dissolve into copper sulphate solution?

A beaker contains an acidified copper sulphate solution. A copper plate and a carbon rod are kept in this copper sulphate solution. The copper plate is connected to the positive terminal of a battery whereas the carbon rod is connected to the negative terminal of the battery. What will you observe when an electric current is passed through this set-up for a considerable time?

Q. During the electroplating of copper in the copper sulphate solution, _____________ remains constant.

Assertion: When an electric current is passed through the copper sulphate electrolyte, the impure copper anode gradually dissolve and pure copper is deposited on the cathode.

Reason: Pure metals are deposited in electroplating techniques.

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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You have a wire of pure copper and a block of impure copper. How will you clean the impure copper?

The correct option is D Set up an electroplating circuit with clean copper as negative terminal dipped in copper sulphate solution Clean copper as negative terminal dipped in copper sulphate solution will get only pure copper from the block of impure copper.

The correct option is D
Set up an electroplating circuit with clean copper as negative terminal dipped in copper sulphate solution

Clean copper as negative terminal dipped in copper sulphate solution will get only pure copper from the block of impure copper.