Non-Zero dipole moment is shown by :
1.
2. p-Dichlorobenzene
3. Carbontetrachloride
4. Water.
An incorrect statement regarding resonating structures is :
1. | The contributing structure must have the same number of unpaired electrons. |
2. | The contributing structures should have similar energies. |
3. | The resonance hybrid should have a higher energy than any of the contributing structures. |
4. | None of the above. |
Assuming that Hund's rule is violated, the bond order and magnetic nature of the diatomic molecule is:
1. | 1 and diamagnetic | 2. | 0 and diamagnetic |
3. | 1 and paramagnetic | 4. | 0 and paramagnetic |
The hybridization of orbitals of N atom in are respectively:
1.
2.
3.
4.
A molecule having the smallest bond angle among the following is :
1. | \(\mathrm{SO}_2\) | 2. | \(\mathrm{H_2O}\) |
3. | \(\mathrm{H_2S}\) | 4. | \(\mathrm{NH}_3\) |
Molecule/Ion that is diamagnetic in nature is:
1. | \(\mathrm{H}^-_2\) | 2. | \(\mathrm{H}_2\) |
3. | \(\mathrm{H}^+_2\) | 4. | \(\mathrm{He}^+_2\) |
Which among the following does not contain a set of isoelectronic species?
1.
2.
3.
4.
A molecule or ion that has an unequal bond length is:
1. | \(\mathrm{SF}_4\) | 2. | \(\mathrm{SiF}_4\) |
3. | \(\mathrm{XeF}_4\) | 4. | \(\mathrm{BF}^-_4\) |
The correct increasing order of the polarizing power of the cationic species is:
1.
2.
3.
4.