With what neutral molecule is ClO– isoelectronic? Is that molecule a Lewis base?
With what neutral molecule is ClO– isoelectronic? Is that molecule a Lewis base?

ClO is isoelectronic with ClF.
Total number of electrons in ClO  = 17 + 8 + 1 =26
Total number of electrons in ClF = 17 + 9 = 26
As ClF accepts electrons from fluorine to form ClF3 , ClF behaves like a Lewis base due to the abundance of electrons which it can donate to a Lewis acid in future.