H2O has a net dipole moment while BeF2 has zero dipole moment because.
H2O molecules is linear while BeF2 is bent
BeF2 molecule is linear while H2O is bent
Fluorine has more electronegativity than oxygen
Beryllium has more electronegativity than oxygen
The correct order of N-O bond lengths in NO, NO-2, NO-3 and N2O4 is
NO-2O4 > NO-2 > NO-3>NO
NO> NO-3>N2O4 >NO-2
NO-3 > NO-2 > N2O4>NO
NO > N2O4 > NO-2 > NO-3
The ground state electronic configuration of valence shell electrons in nitrogen molecule (N2) is written as kk, σ 2s2, σ *2s2, σ 2p2x, π2p2y ≈ π2p2z
Bond order in nitrogen molecule is
0
2
1
3
The BCI3 is a planar molecule whereas NCI3 i pyramidal because
B - CI bond is more polar than N-CI bond
N-CI bond is more covalent than B-CI bond
Nitrogen atom is smaller than boron atom
BCI3 has no lone pair but NCI3 has a lone pair of electrons
Which structure is linear?
SO2
CO2
CO2-3
SO2-4
Strongest hydrogen bonding is shown by
H2O
NH3
HF
H2S
Which one of the following is the correct order of interactions?
Covalent < hydrogen bonding < van der
Van der Waals' < hydrogen bonding < dipole-dipole < covalent
Van der Waal's < dipole-dipole < hydrogen bonding < covalent
Dipole-dipole < van der Waal's < hydrogen bonding < covalent
Linear combination of two hybridised orbitals belonging to the two atoms, each having one electron leads to a
Sigma bond
Double bond
coordinate bond
Pi-bond
The dielectric constant of H2O is 80. The electrostatic force of attraction between Na+ and CI- 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 correct order of the O-O bond length in O2, H2O2 and O3 is
O2 > O3 > H2O2
O3 > H2O2 > O2
O2 > H2O2 > O3
H2O2 > O3 > O2
