The compound that contains zero oxidation state of Fe is:
1. | [Fe(CN)6]-4 | 2. | [Fe(CN)6]-3 |
3. | Fe(CO)5 | 4. | All of the above. |
If the oxidation numbers of A, B, and C are + 2, +5, and –2 respectively, then the possible formula of the compound is:
1. | A2(BC2)2 | 2. | A3(BC4)2 |
3. | A2(BC3)2 | 4. | A3(B2C)2 |
The oxidation states(O.S.) of sulphur in the anions follow the order:
1.
2.
3.
4.