In electrolytic refining, the cathode is made up of
a) Pure metal
b) Impure metal
c) Alloy
d) Metallic salt
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Explanation: In electrolytic refining of a metal, the cathode is made up of pure metal whereas the anode is made up of impure metal. ... Explanation: Aluminium oxide is amphoteric in nature, i.e., it reacts with acids as well as bases to form salt and water.
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a) pure metal.............
Explanation:
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