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If E is the total energy of the combinin...

If E is the total energy of the combining atomic orbitals, and `E_b` and `E_a` are the energies of the bonding and antibonding molecular orbitals formed, respectively, then

A

` E-E_b lt E_a-E`

B

`E-E_b =E_a-E`

C

`E-E_b gt E_a-E`

D

Any of these depending upon the nature of combining atoms

Text Solution

Verified by Experts

The correct Answer is:
A
The energy of the bonding `MO` is lower than that of the atomic orbitals by an amount `Delta(=E-E_b)`. This is known as the stabilization energy. Similarly, the energy of the antibonding molecular orbital is increased by `Delta(=Ea-E)` and is referred to as the destabilization energy. In general, the destabilization energy is greater than the stabilization energy because the antibonding `MO` is raised more in energy than the energy by which the bonding `MO` is lowered.
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