Which of the following reactions is considered an oxidation-reduction reaction?
I. NH₃ (g) + HCl (g) →NH₄Cl
II. Zn (s) + CuSO₄ (aq) →Cu (s) + ZnSO₄ (aq)
III. 2 K (s) + Cl₂ (g) →2 KCl (s)

Question

Which of the following reactions is considered an oxidation-reduction reaction? I. NH₃ (g) + HCl (g)→NH₄Cl II. Zn (s) + CuSO₄ (aq)→Cu (s) + ZnSO₄ (aq) III. 2 K (s) + Cl₂ (g)→2 KCl (s)

Quizplus · Accepted Answer

Reactions II and III are oxidation-reduction reactions because they involve the transfer of electrons. In reaction II, Zn is oxidized to Zn^2+ and Cu^2+ is reduced to Cu. In reaction III, K is oxidized to K+ and Cl2 is reduced to Cl-. Reaction I does not involve the transfer of electrons in the same way, making it not an oxidation-reduction reaction.

Which of the Following Reactions Is Considered an Oxidation-Reduction Reaction