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
The high density of water compared to ice is due to
Hydrogen bonding interactions
Dipole-dipole interactions
Dipole-induced dipole interactions
Induced dipole-induced dipole interactions
N2and O2, are converted into monoanions N-2 and O-2 respectively. Which of the following statements is wrong?
In N2, the N-N bond weakens
In O-2, O-O bond length increase
In O-2, bond order decreases
N-2, becomes diamagnetic
Which of the following molecules does not have a linear arrangement of atoms?
H2S
C2H2
BeH2
CO2
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 molecule which does not exhibit dipole moment is
NH3
CHCI3
H2O
CCI4
Which statement is not correct?
A sigma bond is weaker than a π- bond
A sigma bond is stronger than a π -bond
A double bond is stronger than a single bond
A double bond is shorter than a single bond
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
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
Which one shows maximum hydrogen bonding?
H2Se
HF
