Match the compounds (given in Column I) with the oxidation state of Cobalt (given in Column II) and assign the correct code.
|
Column-I |
Column-II |
||
| A. | \(\left[\mathrm{Co}(\mathrm{NCS})\left(\mathrm{NH}_3\right)_5\right]\left(\mathrm{SO}_4\right)\) | 1. | +4 |
| B. | \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_4 \mathrm{Cl}_2\right] \mathrm{SO}_4\) | 2. | +2 |
| C. | \(\mathrm{Na}_4\left[\mathrm{Co}\left(\mathrm{S}_2 \mathrm{O}_3\right)_3\right]\) | 3. | 0 |
| D. | \(\left[\mathrm{Co}_2(\mathrm{CO})_8\right]\) | 4. | +3 |
Codes:
| A | B | C | D | |
| 1. | 2 | 3 | 4 | 1 |
| 2. | 3 | 1 | 4 | 2 |
| 3. | 1 | 4 | 3 | 2 |
| 4. | 4 | 1 | 2 | 3 |
© 2026 GoodEd Technologies Pvt. Ltd.
