JEE Main20241 Feb 2024Evening ShiftChemistryChemical Bonding and Molecular StructureActual
Given below are two statements : Statement (I) : A π bonding MO has lower electron density above and below the inter-nuclear axis. Statement (II) : The π * antibonding MO has a node between the nuclei. In light of the above statements, choose the most appropriate answer from the options given below:
Options
- ABoth Statement I and Statement II are false
- BBoth Statement I and Statement II are true
- CStatement I is false but Statement II is true
- DStatement I is true but Statement II is false
Correct answer
C. Statement I is false but Statement II is true
Step-by-step solution
The pi bonding molecular orbital has a larger electron density above and below the internuclear axis due to the symmetry of the orbital, interference of atomic orbitals, and overlap of atomic orbitals. The electron density is minimum along the internuclear axis due to the nodal plane. A π bonding molecular orbital has higher electron density above and below inter nuclear axis. This π * orbital has two nodes: one node is the plane which contains the atoms, and the other node is a plane perpendicular to this, between