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% |
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 .
Polarization of electrons in acrolein may be written as:
1.
2.
3.
4.
The species among the following that does not exist is-
1.
2.
3.
4.
If is pink in colour, the will be '.............' coloured.
(1) yellow
(2) red
(3) blue
(4) cannot be predicted
The species showing - overlapping is :
1.
2.
3.
4.
A compound having a metal-to-metal bond is:
1. Cupric chloride
2. Stannous chloride
3. Mercurous chloride
4. Mercuric chloride
Which of the following orbital can not form as well as -bond?
(1) (2)
(3) (4)
Which molecule does not exist?
1.
2.
3.
4.
Aqueous solution of which of the following compounds is the best conductor of electric
current?
1. Acetic acid, C2H4O2
2. Hydrochloric acid, HCl
3. Ammonia, NH3
4. Fructose, C6H12O6
Predict the correct order among the following.
(1) lone pair-lone pair>bond pair-bond pair>lone pair-bond pair
(2) bond pair-bond pair>lone pair-bond pair>lone pair-lone pair
(3) lone pair-bond pair>bond pair-bond pair>lone pair-lone pair
(4) lone pair-lone pair>lone pair-bond pair>bond pair-bond pair
The species, having bond angles of 120° is :
1. PH3
2. ClF3
3. NCl3
4. BCl3
Which of the following leads to bonding orbital?
1. | 2. | ||
3. | 4. |
The isostere pair is
1. CO2 and N2O
2. CO and N2
3. O2 and NO2
4. Both (1) and (2)
In which case observed dipole moment is greater than theoretical dipole moment?
1. | |
2. | |
3. | |
4. |
The number of sigma bonds in P4O10 is
1. 6
2. 16
3. 20
4. 7
In an octahedral structure, the pair of d orbitals involved in d2sp3-hybridisation is:
1.
2.
3.
4.