Chemistry-Molecular Orbital Theory

NEET Chemistry Molecular Orbital Theory MCQ Question

Type: MCQ-conceptual-Medium-Class 11

Which of the following statements about molecular orbitals and their characteristics is correct?

A

The bonding molecular orbital is formed by the constructive interference of atomic orbitals.

B

Antibonding molecular orbitals have lower energy than bonding molecular orbitals.

C

A molecule is stable if the number of electrons in antibonding orbitals exceeds those in bonding orbitals.

D

The molecular orbital theory does not explain bond lengths or dissociation enthalpies in diatomic molecules.

Correct Answer

Option A

Detailed Explanation

The bonding molecular orbital is indeed formed by the constructive interference of atomic orbitals, as stated in the explanation of molecular orbitals. Option B is incorrect because antibonding orbitals are higher in energy than bonding orbitals. Option C is incorrect since stability requires more electrons in bonding orbitals than in antibonding. Option D misrepresents molecular orbital theory, which helps explain bond characteristics.

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