Oxidation & Reduction MCQs 20 min Score: 0 Attempted: 0/20 Subscribe 1. In H₂O₂ the oxidation number of oxygen is (A) 1 (B) 2 (C) 1/2 (D) +2 2. In oxidation, removal of ______ takes place (A) H₂ (B) CO₂ (C) O₂ (D) SO₂ 3. In reduction, the addition of ______ takes place (A) CO₂ (B) H₂ (C) O₂ (D) SO₂ 4. CaO is an example of (A) Normal oxide (B) Superoxide (C) Peroxide (D) Sub oxide 5. Na₂O₂ is an example of (A) Peroxide (B) Superoxide (C) Sub oxide (D) Normal oxide 6. H₂O₂ is an example of (A) Sub oxide (B) Superoxide (C) Peroxide (D) Normal oxide 7. In superoxide the oxidation number of oxygen is (A) 2 (B) 1/4 (C) 1 (D) 1/2 8. C₃O₂ is an example of (A) Peroxide (B) Sub oxide (C) Normal oxide (D) Amphoteric oxide 9. Which one is oxidizing agent? (A) S (B) I₂ (C) Al (D) H 10. Which one is reducing agent? (A) H₂O₂ (B) O₃ (C) SO₂ (D) O₃ 11. ZnO and Al₂O₃ are examples of (A) Acidic oxide (B) Basic oxide (C) Amphoteric oxide (D) Neutral oxide 12. Which one is not peroxide? (A) H₂O₂ (B) CaO (C) Na₂O₂ (D) BaO₂ 13. Which one is normal oxide? (A) Na₂O₂ (B) H₂O₂ (C) K₂O (D) BaO₂ 14. Which one is neutral oxide? (A) K₂O (B) CaO (C) N₂O (D) CO₂ 15. Which one is not basic oxide? (A) K₂O (B) CaO (C) MgO (D) CO₂ 16. H₂O₂ is a strong (A) Reducing agent (B) Oxidizing agent (C) Acid (D) Base 17. Which oxide is not acidic? (A) SO₂ (B) N₂O (C) CO₂ (D) P₂O₅ 18. The formula of carbon sub oxide is (A) C₄O₃ (B) C₃O₂ (C) C₃O₄ (D) C₂O₃ 19. ZnO is an example of (A) Amphoteric oxide (B) Neutral oxide (C) Basic oxide (D) Acidic oxide 20. KMnO₄ is a (A) Reducing agent (B) Base (C) Acid (D) Oxidizing agent
