Chemistry Chemical Bonding and Molecular Structure JEE Advanced Previous Years Question Single Correct MCQ
Published on: August 13, 2026

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 ψ A + ψ B , which shows destructive interference of the combining electron waves.

A
Assertion is correct, reason is incorrect.
B
Assertion is incorrect, reason is correct.
C
Assertion and reason are correct, but reason is not the correct explanation for the assertion.
D
Assertion and reason are correct and reason is the correct and reason is the correct explanation for the assertion.

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The correct answer is:
A

Bonding molecular orbital results in increased electron density between nuclei due to constructive interference of combining electron waves

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