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