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


13.
Which of the following species is diamagnetic?
A.
B₂
B.
C₂
C.
O₂
D.
N₂⁺
😑 View Answer Rough Work Error
ANSWER :
D. N₂⁺
14.
Which molecule has one unpaired electron?
A.
O₂⁻
B.
CO
C.
He₂⁺
D.
N₂⁻
😑 View Answer Rough Work Error
ANSWER :
A. O₂⁻
15.
Which of the following has the highest bond order?
A.
O₂⁺
B.
O₂⁻
C.
O₂
D.
O₂²⁻
😑 View Answer Rough Work Error
ANSWER :
A. O₂⁺
16.
Bond order and bond energy are
A.
Directly proportional
B.
Inversely proportional
C.
Not related
D.
Exponentially related
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ANSWER :
A. Directly proportional
17.
Bond order and bond length are
A.
Inversely related
B.
Directly related
C.
Not related
D.
Unpredictable
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ANSWER :
A. Inversely related
18.
Which has longer bond length?
A.
N₂
B.
N₂⁺
C.
N₂⁻
D.
N₂²⁻
😑 View Answer Rough Work Error
ANSWER :
D. N₂²⁻