H2S (g) + Cl2 (g) → 2 HCl (g) + S (s)
The correct statement(s) in the balanced equation is(are):
a. H2S is oxidised
b. Cl2 is reduced
c. H2S is reduced
d. Cl2 is oxidised
1. a, b
2. b, c
3. c, d
4. a, d
Match the items in column I with column II.
(O.S = oxidation state)
Column I | Column II |
a. Au O.S in HAuCl4 | i. +2 |
b. Tl O.S in Tl2O | ii. +1 |
c. Fe O.S in FeO | iii. +3 |
d. Cu O.S in CuI |
Match the items in column I with the items in column II.
Column I | Column II |
a. N2 (g) + O2 (g) → 2 NO (g) | i. Disproportionation redox reaction |
b. 2Pb(NO3)2(s) → 2PbO(s) + 4 NO2 (g) + O2 (g) | ii. Decomposition redox reaction |
c. NaH(s) + H2O(l) → NaOH(aq) + H2 (g) | iii. Combination redox reactions |
d. 2NO2(g) + 2OH–(aq) → NO2–(aq) + NO3– (aq) + H2O(l) | iv. Displacement redox reaction |
Identify the correct statements regarding the given reaction:
a. | Phosphorus undergoes reduction only. |
b. | Phosphorus undergoes oxidation only. |
c. | Phosphorus undergoes oxidation as well as reduction. |
d. | Hydrogen undergoes neither oxidation nor reduction. |
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Identify the correct statement(s) in relation to the following reaction.
(a) Zinc is acting as an oxidant
(b) Chlorine is acting as a reductant
(c) Hydrogen ion is acting as an oxidant
(d) Zinc is acting as a reductant
The correct choice among the above is -
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
Which of the following statement(s) is/are not true about the following decomposition reaction?
a. | Potassium is undergoing oxidation |
b. | Chlorine is undergoing oxidation |
c. | Oxygen is reduced |
d. | None of the species are undergoing oxidation or reduction |
The correct choice among the above is:
1. (a, b, d)
2. (b, c, d)
3. (b, d, a)
4. None of the above
For the reaction:
Fe3O4 (s) + Al (s) → Fe (s) + Al2O3 (s)
The correct statement(s) in the equation is(are):
a. | Stoichiometric coefficient of Fe is 9. |
b. | Aluminium is oxidized |
c. | Ferrous ferric oxide (Fe3O4) is oxidize |
d. | Aluminium is reduced. |
1. a, c
2. a, b
3. b, c
4. c, d
Column I | Column II |
a. Fe O.S in Fe2O3 | i. +2 |
b. Mn O.S in MnO2 | ii. +3 |
c. Mn O.S in MnO | iii. +4 |
Column I | Column II |
a. Cl2O7 | i. +4 |
b. NaClO3 | ii. +1 |
c. Cl2O | iii. +5 |
d. ClO2 | iv. +7 |
a | b | c | d | |
1. | iii | iv | ii | i |
2. | ii | iii | iv | i |
3. | iv | iii | ii | i |
4. | iv | i | iii | ii |