MEDIUM
Earn 100

Based on molecular orbital theory, the bond order depends on the number of electrons in the bonding and antibonding molecular orbitals. Identify the correct statements about bond order ?

100% studentsanswered this correctly

Important Questions on Chemical Bonding and Molecular Structure

EASY
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
Stability of the species  Li 2 , Li 2 - and Li 2 +  increases in the order of
EASY
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
Which one of the following molecules is expected to exhibit paramagnetic behaviour?
EASY
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
Which of the following is paramagnetic?
HARD
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory

Decreasing order of stability of O2, O2-, O2+ and O22- is:

HARD
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
In which of the following processes, the bond order has increased and paramagnetic character has changed to diamagnetic?
MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
Which one of the following properties is not shown by NO ?
MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
In which of the following pairs of molecules/ions, both the species are not likely to exist?
MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
According to molecular orbital theory, which of the following molecule will not be available?
EASY
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
Which of the following species is not paramagnetic?
EASY
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
The diamagnetic species is:
EASY
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
After understanding the assertion and reason, choose the correct option.

Assertion: In the bonding molecular orbital (MO) of H 2 , electron density is increased between the nuclei.
Reason: The bonding MO is ψA+ψB , which shows destructive interference of the combining electron waves.
MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
The correct bond order in the following species is:
MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
Which of the following has unpaired electron(s)?
EASY
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
Which one of the following pairs of species has the same bond order?
MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
Which one of the following molecules is paramagnetic?
HARD
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory

Among the following molecules/ ions, 

C22-, N22-,O22-, O2

Which one is diamagnetic and has the shortest bond length?

HARD
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
Assuming 2s – 2p mixing is NOT operative, the paramagnetic species among the following is
MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
Consider the following species:

(i) O 2 2−

(ii) C O +

(iii) O 2 +

Among the following, sigma bond alone is present in -
HARD
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
Which of the following options represents the correct bond order?
MEDIUM
Chemistry>Inorganic Chemistry>Chemical Bonding and Molecular Structure>Molecular Orbital Theory
Two pi and half sigma bonds are present in: