Which of the following would have a permanent dipole moment ?
1. BF3
2. SiF4
3. SF4
4. XeF4
In the case of alkali metals, the covalent character decreases in the order
1. MCl > MI > MBr > MF
2. MF > MCl > MBr > MI
3. MF > MCl > MI > MBr
4. MI > MBr > MCl > MF
The correct order of the dipole moment of the following molecules is :
1. | I > II > III | 2. | I = II = III |
3. | III > II > I | 4. | I > III > II |
Mark the incorrect order of the bond angle:
1. NH3 > NF3
2. NF3 < PF3
3. NH3 > PH3
4. NH3 > H2O
In which case observed dipole moment is greater than theoretical dipole moment?
1.
2.
3.
4.
A molecule having the maximum dipole moment among the following is -
1. CO2
2. CH4
3. NH3
4. NF3
Dipole-induced dipole interactions are present in which of the following pairs?
1. H2O and alcohol
2. Cl2 and CCl4
3. HCl and He atoms
4. SiF4 and He atoms
The electronegativity difference between N and F is greater than that between N and H yet the dipole moment of NH3 (1.5 D) is larger than that of NF3 (0.2 D). This is because:
(1) in NH3 as well as in NF3 the atomic dipole and bond dipole are in the same direction
(2) in NH3 the atomic dipole and bond dipole are in the same direction whereas in NF3 these are in opposite directions
(3) in NH3 as well as NF3 the atomic dipole and bond dipole are in opposite directions
(4) in NH3 the atomic dipole and bond dipole are in the opposite directions whereas in NF3 these are in the same directions
Molecule having non-polar as well as polar bonds but the molecule as a whole is polar:
(a)
(b)
(c)
(d)
Which of the following compound is planar and non-polar?
(1)
(2)
(3)
(4)