1. | Methane | 2. | Methanol |
3. | Sulphuric acid | 4. | Both 1 and 2 |
Rusting of iron is envisaged as setting up of an electrochemical cell because:
1. | Oxidation of iron takes place during rusting. |
2. | Reduction of iron takes place. |
3. | Iron shows disproportionation reaction. |
4. | Oxygen is getting oxidised. |