Question

How many of the following species have fractional bond order :-
02+, CO, B2, 02-, NO+, He2+, c2+2, CN-, N2-

1. 2
2. 3
3. 4
4. 5​

Answer 1

Answer:

option 3

Explanation:

O2+

O2-

He+2

N2-

Answer 2

The number of species from the list given that have fractional bond order is:-(Option 3.) 4

There are a total of four species among the list having fractional bond order. They are:

O2+, O2-, He2+ and N2-.

• Meaning of fractional Bond order: the bond order of a molecule that shows that the molecule has fraction or decimal bond order.
• And, a molecule with fractional Bond order has lesser stability than that of a molecule with a whole number bond order greater than the fractional bond order.
• For example, suppose a molecule with a bond order of 1.3 will have less stability than a molecule with a Bond order of 2. But it will have more stability than the molecule with bond order 1.