Which metal is extracted by electrolytic reduction method?

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Solution

The correct option is B Al
Aluminium is extracted by electrolytic reduction method. In electro-refining method, impure metal is taken as anode and pure metal is made of cathode. The electrodes are placed in acidified aqueous solution of metal salt or molten metal salt. On electrolysis, the metal in anode dissolves into the solution and gets deposited over the cathode. The residue left below the anode in the electro-refining of metal is called anode mud. Aluminum metal obtained by the electrolysis of fuse alumina is about 99.5% pure. It can be further refined by Hooper's electrolytic process.

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Similar questions

Q. Assertion :Magnesium is extracted by electrolytic reduction.
Reason: All metals are extracted by electrolytic reduction.

There were two metals, Metal A and B. Both were extracted by means of electrolytic reduction of their molten salts. Metal A and B are:

Name one metal each which is extracted by:
(a) reduction with carbon. (b) electrolytic reduction.
(c) reduction with aluminium (d) reduction with heat alone.

Q. (a) Name any one metal each which can be extracted by:
(i) reduction with carbon
(ii) Electrolytic reduction
(iii) Reduction with aluminium
(iv) Reduction with heat alone
(b) Write a chemical equation for any of the above four parts.

Q. Give reason for the following:
Aluminum is extracted from its oxide by electrolytic reduction and not by conventional reduction agents.

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