Bond order of co: Assertion

Assertion : F 2 and O2− 2 have bond order 1 while N 2,CO and N O+ have bond order 3. Reason: Higher the bond order, higher is the stability of the molecule. What is Bond Order Bond order refers to the number of chemical bonds formed between two atoms in a molecule. For example, two atoms of hydrogen combine to form a hydrogen molecule (H-H or H 2). Therefore, the bond order of H 2 is one. Similarly, the bond order of oxygen (O=O or O 2) is two and that of nitrogen (N ≡ N or N 2) is three. The value need not be an integer, especially for polyatomic molecules having resonance structures [1-4]. There are several ways to find the bond order for CO (Carbon monoxide). In this video we'll draw the Lewis Structure for CO and then use this to determine the bond order. ...more In short: The bond order of $\ce {CO}$ is not exactly 3 and removing an electron will not increase the bond order to 3.5. In both cases, the observed bond order is probably closer to 2.5, while experiments suggest that the bond is stronger in $\ce {CO+}$.