State which of the following are oxidation reactions and which are red

1.	State which of the following are oxidation reactions and which are reduction reactions.1. Cu → Cu2+ + 2e–2. Cu2+ + 2e– → Cu3. Sn4+ + 2e–→Sn2+4. 2Cl- → Cl2 + 2e-5. Fe2+ → Fe3+ + Ie–6. X + 2e- → X2- 7. Y - Ie– → Y1+8. Z3+ + Ie– → Z2+
Answer» Oxidation reactions: (3) Sn⁴⁺ + 2e^–→ Sn²⁺ (6) X + 2e^–→ X^2- (7) Y - Ie^– → Y¹⁺ (8) Z³⁺+ Ie^–→ Z²⁺ Reduction reactions. (1) Cu → Cu²⁺ + 2e^– (2) Cu²⁺ + 2e^– → Cu (4) 2Cl^- → Cl₂ + 2e^- (5) Fe²⁺ → Fe³⁺+ Ie^–

State which of the following are oxidation reactions and which are reduction reactions.1. Cu → Cu2+ + 2e–2. Cu2+ + 2e– → Cu3. Sn4+ + 2e–→Sn2+4. 2Cl- → Cl2 + 2e-5. Fe2+ → Fe3+ + Ie–6. X + 2e- → X2- 7. Y - Ie– → Y1+8. Z3+ + Ie– → Z2+

Answer»

Oxidation reactions:

(3) Sn⁴⁺ + 2e^–→ Sn²⁺

(6) X + 2e^–→ X^2-

(7) Y - Ie^– → Y¹⁺

(8) Z³⁺+ Ie^–→ Z²⁺

Reduction reactions.

(1) Cu → Cu²⁺ + 2e^–

(2) Cu²⁺ + 2e^– → Cu

(4) 2Cl^- → Cl₂ + 2e^-

(5) Fe²⁺ → Fe³⁺+ Ie^–