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
2Cu2O(s) + Cu2S(s) → 6Cu(s) + SO2(g)
The correct statement among the following regarding above mentioned reaction is:
1. Cu is reduced and Cu(I) is an reductant.
2. Sulphur is reduced and S in Cu2S acts as oxidant.
3. Cu(I) is an oxidant and Cu(I) is reduced.
4. Sulphur is reduced and Cu is oxidised.
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