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