The stability of the +1 oxidation state increases in the sequence:
1. Al <Ga<In<Tl
2. Tl<In<Ga<Al
3. In<Tl<Ga<Al
4. Ga<In<Al<Tl
The incorrect statement among the following is:
1. SnF4 is ionic in nature.
2. PbF4 is covalent in nature.
3. SiCl4 is easily hydrolysed.
4. GeX4 (X = F, Cl, Br, I) is more stable than GeX2
Which of the following species is not stable?
| 1. | 2. | ||
| 3. | 4. |
|
| 1. | Sheet silicate | 2. | Pyrosilicate |
| 3. | Three dimensional silicate | 4. | Linear chain silicate |
A compound among the following that is least likely to behave as a Lewis base is:
| 1. | NH3 | 2. | BF3 |
| 3. | OH- | 4. | H2O |
The basic structural unit of silicates is:
1. (SiO4)4–
2. (SiO3)2–
3. (SiO4)2–
4. (SiO)
Which of the following is not a monomer for a high molecular mass silicone polymer?
| 1. | Me2SiCl2 | 2. | Me3SiCl |
| 3. | PhSiCl3 | 4. | MeSiCl3 |
The stability of +1 oxidation state among Al, Ga, In and Tl increases in the sequence?
1. Ga < ln < Al < Tl
2. Al < Ga < ln < Tl
3. Tl < ln < Ga < Al
4. ln < Tl < Ga < Al
| 1. | \(\mathrm{SiCl}_4, \mathrm{PCl}_4^{+}\) | 2. | Diamond, silicon carbide |
| 3. | \(\mathrm{NH}_3, \mathrm{PH}_3\) | 4. | \(\mathrm{XeF}_4, \mathrm{XeO}_4\) |
The correct order of atomic radii of the group 13 elements is-
1. B < Al < In < Ga < Tl
2. B < Al < Ga < In < Tl
3. B < Ga < Al < Tl < In
4. B < Ga < Al < In < Tl