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
The type of hybridization of boron in diborane is ______________.
Sp- hybridization
Sp2- hybridization
Sp3- hybridization
SP3d2- hybridization
Which structure is linear?
SO2
CO2
CO32-
SO42-
Which one of the following statements is not correct for sigma and Pi bonds formed between two carbon atoms?
Free rotation of atoms about a sigma bond is allowed but not in case of Pi bond.
Sigma bond determines the direction between carbon atoms but a Pi bond has no primary effect in this regard.
Sigma bond is stronger than a Pi bond.
Bond energies of sigma and Pi bonds are of the order of 264 KJ / mol and 347 KJ/ mol, respectively.
When the hybridisation state of carbon atom changes from Sp3 and finally to Sp, the angle between the hybridised orbitals.
Decreases gradually
Decrease considerably
Is not affected
Increases progressively
Among the following which compound will show the highest lattice energy?
KF
NaF
CsF
RbF
In which one of the following molecules, the central atom said to adopt Sp2- hybridisation?
Be F2
BF3
C2H2
NH3
Which of the following has Pπ - dπ bonding ?
NO3-
SO32-
CN - ,CO
SO2, CO2
Which one of the following has the highest dipole moment?
As H3
Sb H3
PH3
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.
