Using the standard electrode potentials of the redox couples given below, which of the following is the strongest oxidizing agent?
1. Fe3+
2. I2(s)
3. Cu2+
4. Ag+
In the given reaction,
xBrO3-+ yCr+3 + zH2O Br2 + CrO42- + H+
The coefficients x, y, and z are respectively-
1. 6, 10, 11
2. 6, 10, 20
3. 6, 8, 22
4. 6, 10, 22
Consider the given data:
Using the electrode potential values given above, identify the reaction which is not feasible:
1. | Fe3+(aq) and I- aq) |
2. | Ag+(aq) and Cu(s) |
3. | Fe3+(aq) and Cu(s) |
4. | Ag(s) and Fe3+(aq) |
In the reaction:
Al + Fe3O4 → Al2O3 + Fe
How many electrons are transferred in total during the reaction?
1. 6
2. 8
3. 8/3
4. 24
From the following, identify the reaction having the top position in the EMF series (standard reduction potential) according to their electrode potential at 298 K.
1. Mg2++ 2e–Mg(s)
2. Fe2+ + 2e– Fe(s)
3. Au3++ 3e–Au(s)
4. K++ le –K(s)
The correct statement about the electrolysis of an aqueous solution of with Ag electrode is:
1. | Ag+ ion gets oxidised at cathode; Ag(s) is reduced at anode. |
2. | H2O gets reduced at cathode; H2O gets oxidised at anode. |
3. | Ag+ ion gets reduced at cathode; H2O is oxidised at anode. |
4. | Ag+ ion gets reduced at cathode; Ag(s) is oxidised at anode. |