Which one of the following has the highest dipole moment?
As H3
Sb H3
PH3
NH3
The boiling point of P- nitrophenol is higher than that of O- nitrophenol because
NO2 group at p- position behave in a different way from that at O- position.
Intramolecular hydrogen bonding exists in p- nitrophenol
There is intermolecular hydrogen bonding in p- nitrophenol.
P- nitrophenol has a higher molecular weight than O- nitrophenol.
In which one of the following molecules, the central atom said to adopt Sp2- hybridisation?
Be F2
BF3
C2H2
The dielectric constant of H2O is 80. The electrostatic force of attraction between Na+ and Cl- will be
Reduced to 1/40 in water than in air.
Reduced to 1/80 in water than in air.
Will be increased to 80 in water than in air
Will remain unchanged
Among LiCl, BeCl2, BCl3 and CCl4, the covalent bond character follows the order.
LiCl< BeCl2> BCl3> CCl4
LiCl< BeCl2< BCl3> CCl4
LiCl< BeCl2< BCl3< CCl4
LiCl> BeCl2> BCl3> CCl4
Equilateral shape has
Sp - hybridization
Sp2- hybridization
Sp3- hybridization
dsp2- hybridization
The type of hybridization of boron in diborane is ______________.
Sp- hybridization
SP3d2- hybridization
Which of the following has Pπ - dπ bonding ?
NO3-
SO32-
CN - ,CO
SO2, CO2
H2O, is dipolar, whereas Be F2 is not. It is because
The electro negativity of F is greater than that of O
H2O involves hydrogen bonding whereas Be F2 is a discrete molecule.
H2O is linear and Be F2 is angular
H2O is angular and BeF2 is linear .
In a regular octahedral molecule, MX6, the number of X-M-X bonds at 180o is_______________.
3
2
6
4
