The manganate and permanganate ions are tetrahedral, due to:
1. | The π-bonding involves the overlap of d-orbitals of oxygen with d-orbitals of manganese. |
2. | The π-bonding involves the overlap of p-orbitals of oxygen with d-orbitals of manganese. |
3. | Absence of π-bonding. |
4. | The π-bonding involves the overlap of p-orbitals of oxygen with p-orbitals of manganese. |
When neutral or faintly alkaline is treated with potassium iodide, iodide ion is converted into 'X'. 'X' is:
1.
2.
3.
4.