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
Which of the following statement is not correct?
Double bond is shorter than a single bond
Sigma bond is weaker than a π (pi) bond
Double bond is stronger than a sing bond
Covalent bond is stronger than hydrogen bond
Which structure is linear?
SO2
CO2
CO2-3
SO2-4
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
Among LiCI, BeCI2, BCI3 and CCI4, the covalent bond character follows the order
LiCI < BeCI2 > BCI3 > CCI4
LiCI < BeCI2 < BCI3 > CCI4
LiCI < BeCI2 < BCI3 < CCI4
LiCI > BeCI2 > BCI3 > CCI4
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
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
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
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
