The wave functions of 
- orbitals of two hydrogen atoms are 
and 
and 
are linearly combined to form two molecular orbitals 
and 
. Which of the following statements are correct?
I. 
is equal to 
.
II. In 
-orbital, one nodal plane is present in between two nuclei.
III. The energy of 
-orbital is lower than the energy of 
-orbital.
Text Solution
Verified by ExpertsD
According to molecular orbital theory:
-orbital are formed by the substraction of two wave functions say 
and 
and therefore 
.
II. 
-orbital are formed when two orbitals are in same phase Hence, they do not have nodal plane in between two nuclei.
III. Combination of two sigma 
atomic orbitals give two types of molecular orbitals one is bonding molecular orbital 
and another one is antibonding molecular orbital 
Energy of 
is lower than that of 
orbital.
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