Molecular Orbital Theory (Its Important features. LCAOs, types of molecular orbitals (bonding, antibonding), sigma and pi-bonds, molecular orbital electronic configurations of homonuclear diatomic molecules, the concept of bond order, bond length, and bond energy ) NEET Questions

Physical Chemistry - Chemical Bonding and Molecular Structure

Molecular Orbital Theory (Its Important features. LCAOs, types of molecular orbitals (bonding, antibonding), sigma and pi-bonds, molecular orbital electronic configurations of homonuclear diatomic molecules, the concept of bond order, bond length, and bond energy ) MCQ Questions


7.
The bond order of O₂ is
A.
1
B.
2
C.
3
D.
4
😑 View Answer Rough Work Error
ANSWER :
B. 2
8.
The bond order is defined as
A.
½(Nb - Na)
B.
(Nb - Na)/2
C.
½(Na - Nb)
D.
Nb + Na
😑 View Answer Rough Work Error
ANSWER :
A. ½(Nb - Na)
9.
Number of bonding electrons in O₂ is
A.
6
B.
8
C.
10
D.
12
😑 View Answer Rough Work Error
ANSWER :
C. 10
10.
Which molecule has bond order 0?
A.
H₂⁺
B.
He₂⁺
C.
He₂
D.
O₂⁻
😑 View Answer Rough Work Error
ANSWER :
C. He₂
11.
A negative bond order implies
A.
Molecule exists
B.
Molecule unstable
C.
Molecule does not exist
D.
High energy structure
😑 View Answer Rough Work Error
ANSWER :
C. Molecule does not exist
12.
The bond order of N₂ is
A.
1
B.
2
C.
3
D.
4
😑 View Answer Rough Work Error
ANSWER :
C. 3