The correct increasing order of the polarizing power of the cationic species is:
1.
2.
3.
4.
The specie with the shortest bond length is:
1. | \(O^+_2\) | 2. | \(O^-_2\) |
3. | \(O^{2-}_2\) | 4. | \(O^{2+}_2\) |
Among the following, the maximum covalent character is shown by which compound:
1.
2.
3.
4.
From the following pairs, the two species that are not isostructural are :
1. | \(\mathrm{PF}_5~\mathrm{and}~\mathrm{BrF}_5\) | 2. | \(\mathrm{PCl}^+_4~\mathrm{and}~\mathrm{SiCl}_4\) |
3. | \(\mathrm{CO}_{3}^{2-} \ \mathrm{and} \ \mathrm{NO}_{3}^-\) | 4. | \(\mathrm{AIF}^{3-}_6~\mathrm{and}~\mathrm{SF}_6\) |
The number of sigma () and pi () bonds in pent-2-en-4-yne is:
1. 13 bonds and no bond.
2. 10 bonds and 3 bonds.
3. 8 bonds and 5 bonds.
4. 11 bonds and 2 bonds.
Match the compounds of Xe in column I with the molecular structure in column II.
Column-I | Column-II |
(a) | (i) Square planar |
(b) | (ii) Linear |
(c) | (iii) Square pyramidal |
(d) | (iv) Pyramidal |
(a) | (b) | (c) | (d) | |
1. | (ii) | (i) | (iii) | (iv) |
2. | (ii) | (iv) | (iii) | (i) |
3. | (ii) | (iii) | (i) | (iv) |
4. | (ii) | (i) | (iv) | (iii) |
The correct relationship for the bond angle of water and dimethyl ether is:
1. | Water > dimethyl ether | 2. | Dimethyl ether > Water |
3. | Dimethyl ether = Water | 4. | Can not be determined. |
The decreasing order of ionic character of the N-H, F-H, C-H, and O-H, is :
1. | N-H > F-H > C-H > O-H |
2. | F-H > N-H > C-H > O-H |
3. | O-H > C-H > F-H > N-H |
4. | F-H > O-H > N-H > C-H |
A molecule or ion that has an unequal bond length is:
1. | \(\mathrm{SF}_4\) | 2. | \(\mathrm{SiF}_4\) |
3. | \(\mathrm{XeF}_4\) | 4. | \(\mathrm{BF}^-_4\) |
Which among the following does not contain a set of isoelectronic species?
1.
2.
3.
4.