Which of the following statements relating to molecular orbital (MO) theory is i
ID: 819426 • Letter: W
Question
Which of the following statements relating to molecular orbital (MO) theory is incorrect??
a.
Combination of two 2p orbitals may result in either sigma or pi MOs.
b.
Combination of two atomic orbitals produces one bonding and one antibonding MO.
c.
A species with a bond order of zero will not be stable.
d.
In a stable molecule having an even number of electrons, all electrons must be paired.
e.
A bonding MO is lower in energy than the two atomic orbitals from which it is formed.
a.
Combination of two 2p orbitals may result in either sigma or pi MOs.
b.
Combination of two atomic orbitals produces one bonding and one antibonding MO.
c.
A species with a bond order of zero will not be stable.
d.
In a stable molecule having an even number of electrons, all electrons must be paired.
e.
A bonding MO is lower in energy than the two atomic orbitals from which it is formed.
Explanation / Answer
both oxygen (stable as hell ) and cyclobutadiene have unpaired electrons.
So,
d.
In a stable molecule having an even number of electrons, all electrons must be paired.
d.
In a stable molecule having an even number of electrons, all electrons must be paired.
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