Question

When iron or zinc is added to $CuSO_{4}$ solution, copper is precipitated. It is due to.

• A. Oxidation of $Cu^{+ 2}$
• B. Reduction of $Cu^{+ 2}$
• C. Hydrolysis of $CuSO_{4}$
• D. Ionization of $CuSO_{4}$

Answer 1

Answer: (B)

Reduction of $Cu^{+ 2}$

Answer 2

In this reaction $Cu^{2 +}$change in $Cu^{o}$, hence it is called as reduction reaction.