| 1. | \(\mathrm{CO}_3^{2-}, \mathrm{SO}_3^{2-} \) | 2. | \(\mathrm{ClO}_3^{-}, \mathrm{CO}_3^{2-} \) |
| 3. | \(\mathrm{SO}_3^{2-}, \mathrm{NO}_3^{-} \) | 4. | \(\mathrm{ClO}_3^{-}, \mathrm{SO}_3^{2-}\) |
An electron-deficient compound among the following is:
| 1. | (SiH3)2 | 2. | (BH3)2 |
| 3. | PH3 | 4. | (CH3)2 |
| 1. | ICl2– | 2. | SbCl3 |
| 3. | BaCl2 | 4. | TeF2 |
Identify the incorrect statement among the following:
| 1. | Amongst isoelectronic species, the smaller the positive charge on the cation, the smaller is the ionic radius |
| 2. | Amongst isoelectronic species, the greater the negative charge on the anion, the larger is ionic radius |
| 3. | Atomic radius of the elements increases as one moves down the first group of the periodic table |
| 4. | Atomic radius of the elements decreases as one moves across from left to right in the 2nd period of the periodic table |