JAMB Chemistry 2013 Objective — Question 23

Question 23 of 50 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2013 Objective paper, with the correct answer and a full explanation.

Zn(s) + CuSO4(aq) → ZnSO4(aq) + Cu(s). In the reaction above, the oxidizing agent is

A. Zn(s)
B. Cu(s)
C. CuSO4(aq)Correct
D. ZnO(s)

Explanation

The oxidation number of zinc increases from zero to +2 in ZnSO4; zinc has undergone oxidation, so it is the reducing agent, while CuSO4 is the oxidizing agent.

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