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After understanding the assertion and re...

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 `Psi_(A)+Psi_(B)`, which shows destructive interference of the combining electron waves.

A

Assertion and reason are correct, and reason is the correct explanation for the assertion.

B

Assertion and reason are correct, but reason is not the correct explanation for the assertion.

C

Assertion is correct, reason is incorrect.

D

Assertion is incorrect, reason is correct.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the assertion and reason, let's analyze both statements step by step. ### Step 1: Understanding the Assertion **Assertion**: In the bonding molecular orbital (MO) of H₂, electron density is increased between the nuclei. - In a bonding molecular orbital, the electron density is indeed concentrated in the region between the two nuclei of the hydrogen atoms. This increased electron density leads to a stabilizing effect, as the electrons are attracted to both nuclei, effectively holding the two atoms together. ### Step 2: Understanding the Reason **Reason**: The bonding MO is Ψ_A + Ψ_B, which shows destructive interference of the combining electron waves. - This statement is incorrect. The bonding molecular orbital is formed by the constructive interference of the wave functions of the atomic orbitals (Ψ_A and Ψ_B). Constructive interference occurs when the wave functions add together positively (Ψ_A + Ψ_B), leading to an increase in electron density between the nuclei. Destructive interference (Ψ_A - Ψ_B) leads to the formation of an anti-bonding molecular orbital, which has a node between the nuclei and lower electron density in that region. ### Step 3: Conclusion Based on the analysis: - The assertion is **true**: Electron density is indeed increased between the nuclei in the bonding MO of H₂. - The reason is **false**: The bonding MO is formed by constructive interference, not destructive interference. ### Final Answer The correct option is that the assertion is true, but the reason is false. ---
To solve the question regarding the assertion and reason, let's analyze both statements step by step. ### Step 1: Understanding the Assertion **Assertion**: In the bonding molecular orbital (MO) of H₂, electron density is increased between the nuclei. - In a bonding molecular orbital, the electron density is indeed concentrated in the region between the two nuclei of the hydrogen atoms. This increased electron density leads to a stabilizing effect, as the electrons are attracted to both nuclei, effectively holding the two atoms together. ### Step 2: Understanding the Reason ...
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