At which oxidatin state Cu achieves electronic configuration of Zn+2?
Everyday Science / Chemistry — Multiple-choice practice
- A. -1
- B. -3
- C. 0
- D. +2
Correct answer
+2
Explanation
Explanation Oxidation half-reaction : Zn - 2e = Zn^2+ Reduction half-reaction : Cu^2+ +2e = Cu Zn donates two electrons to form Zn^2+ ion and Cu^2+ gains two electrons to form Cu metal. Thus, Cu^2+ is the oxidant.
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