The linear combination of atomic orbitals to form molecular orbitals takes place only when the combining atomic orbitals
A. have the same energy
B. have the minimum overlap
C. have same symmetry about the molecular axis
D. have different symmetry about the molecular axis
Choose the most appropriate from the options given below:
A. have the same energy
B. have the minimum overlap
C. have same symmetry about the molecular axis
D. have different symmetry about the molecular axis
Choose the most appropriate from the options given below:
- (A)A, B, C only
- (B)A and C only✓ Correct
- (C)B, C, D only
- (D)B and D only
Answer: (B)
Solution
Linear combination of atomic orbitals to form molecular orbitals is effective only when the combining atomic orbitals have comparable energy and have the same symmetry about the molecular (internuclear) axis. Orbitals of very different energy, or with mismatched symmetry, do not combine effectively, and maximum (not minimum) overlap is required for effective combination.
So the correct conditions are A and C only.
So the correct conditions are A and C only.
JEE Main · 2024 · 31 Jan 2024 · Shift 1 · Single correct option