The type of molecular forces of attraction present in the following compound is:
1. | Intermolecular H-bonding. | 2. | Intramolecular H-bonding. |
3. | Van der Waal's force. | 4. | All of the above. |
The correct statement among the following for a compound having a higher dipole moment is-
1. | Greater will the ionic nature. | 2. | Lesser will be the polarity. |
3. | Smaller will be the ionic nature. | 4. | None of the above. |
exists but does not because:
1. Nitrogen has no vacant d-subshells .
2. is unstable .
3. Nitrogen atom is much smaller than p .
4. Nitrogen is highly inert .
The bond angle between two hybrid orbitals is . The % s character in orbital is-
1. | Between 30-31% | 2. | Between 9- 12% |
3. | Between 25 -26% | 4. | Between 22-23% |
The strongest hydrogen bond present among the following is-
1.
2.
3.
4.
Which of the following conversions demonstrates an increase in bond order and a change in magnetic behaviour?
1.
2.
3.
4.
The molecule having the smallest bond angle is-
1. | PCl3 | 2. | NCl3 |
3. | AsCl3 | 4. | SbCl3 |
The is a planar molecule whereas is pyramidal because:
1. bond is more polar than bond.
2. Boron atom is bigger than nitrogen atom.
3. Nitrogen is more electronegative than boron.
4. has no lone pair but has a lone pair of electrons.
The correct order of acidic strength is :
1.
2.
3.
4.
A diatomic molecule has a dipole moment of 1.2 D. If its bond length is equal to 10 -10 m , then the fraction of an electronic charge on each atom will be:
1. 42%
2. 52%
3. 37%
4. 25%