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  4. Copper is purified by electrolytic refining of blister copper. The correct statement(s) about this process is (are) :

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Q. Copper is purified by electrolytic refining of blister copper. The correct statement(s) about this process is (are) :

JEE AdvancedJEE Advanced 2015General Principles and Processes of Isolation of Elements

Solution:

(i) Due to acidified aqueous $CuSO_4$, conduction is increased
(ii) Cathode is made by pure Cu
(iii) Anode is made by Impure Cu
(iv) Ag and Au are settle down as a anode mud