JAMB Chemistry 2009 Objective — Question 23

Question 23 of 50 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2009 Objective paper, with the correct answer and a full explanation.

Copper is commercially purified by electrolysis. The impure copper is made the

A. anode while pure copper is made the cathodeCorrect
B. cathode while pure copper is made the anode
C. anode and pure copper is also the anode
D. cathode and pure copper is also the cathode

Explanation

Copper is commercially purified by electrolysis. The impure copper is made the anode while pure copper is made the cathode. The anode progressively dissolves and the copper content is deposited on the copper cathode.

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