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Byju's Answer
Standard XII
Chemistry
Molecular Orbitals of Oxygen
In the format...
Question
In the formation of
O
+
2
from
O
2
, the electron is removed from:
A
σ
−
orbital
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B
π
−
orbital
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C
σ
∗
−
orbital
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D
π
∗
−
orbital
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Solution
The correct option is
D
π
∗
−
orbital
The electronic configuration of
O
2
is:
(
σ
1
s
)
2
(
σ
∗
1
s
)
2
(
σ
2
s
)
2
(
σ
∗
2
s
)
2
(
σ
2
p
z
)
2
(
π
2
p
x
)
2
(
π
2
p
y
)
2
(
π
∗
2
p
x
)
1
(
π
∗
2
p
y
)
1
So, in the formation of
O
+
2
from
O
2
, the electron will be removed from
π
∗
orbital because it is the highest occupied molecular orbital.
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Similar questions
Q.
When the
O
2
molecule becomes the
O
−
2
ion, the electron adds on to which one of the following orbitals?
Q.
In the formation of
O
+
2
from
O
2
, the electron is removed from:
Q.
When the 3d orbital is complete, the new electron enters
Q.
Which is correct statement about
σ
−
and
π
−
molecular orbitals? Statements are
(i)
π
−
bonding orbitals are ungerade
(ii)
π
−
antibonding orbitals are ungerade
(iii)
σ
−
antibonding orbitals are gerade
Q.
The relative energies of molecular orbitals are found to be in increasing order as follows-
σ
(
1
s
)
<
σ
∗
(
1
s
)
<
σ
(
2
s
)
<
σ
∗
(
2
s
)
<
[
π
(
2
p
y
)
π
(
2
p
z
)
]
<
σ
(
2
p
x
)
<
[
π
∗
(
2
p
y
)
π
∗
(
2
p
z
)
]
<
σ
∗
(
2
p
x
)
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