STANDARDChemistry-Chemical Bonding and Molecular Structure
STANDARD Chemistry Molecular Orbital Theory MCQ Question
Type: MCQ-conceptual-Medium-Class 11
According to molecular orbital theory, which of the following will not exist?
A
H₂⁺
B
Be₂
C
B₂
D
C₂
Correct Answer
Option B
Detailed Explanation
Be₂ has a bond order of zero, as calculated by the molecular orbital configuration (σ1s²) (σ1s²) (σ2s²) (σ2s²). Since the bond order is zero, the molecule does not exist.
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