NTA Abhyas NEET2020ChemistryChemical Bonding and Molecular StructurePractice
Consider the following species, 1. O 2 2 − , 2. CO + , 3. O 2 + Among these , sigma bond alone is present in
Options
- A1 alone
- B2 alone
- C3 alone
- D1 and 2
Correct answer
A. 1 alone
Step-by-step solution
O 2 2 − ;   bond order = 1 CO + ; bond order =3 O 2 + ; bond order = 1.5 Thus, only O 2 2 - have σ bonds alone.