Smallest intermolecular distance is found in

Options

A. `O_(2)`
B. `O_(2)^(+2)`
C. `O_(2)^(-)`
D. `O_(2)^(-2)`

Answer

B

Explanation

In `O_(2)`, the bond order =2
In `O_(2)^(+2)`, the bond order=2.5
In `O_(2)^(-)` , the bond order =1.5
In `O_(2)^(-2)` , the bond order=1
As the bond order in `O_(2)^(2+)` is highest , so its internuclear distance is smallest.