Question

O2+,CO,B2,O2-,NO+,He2+C22+CN-,N2- the total no.of species having fractional bond order​

Answer 1

Explanation:

No. of Bonding electrons−No. of Antibonding electron

(i)O

2

2+

=

2

10−4

=3

(ii)O

2

2−

=

2

10−8

=1

(iii)F

2

2−

=

2

10−8

=1

(iv)H

2

−

=

2

2−1

=

2

1

As you can see, the only molecule with fractional Bond order is H

2

−

. It has a Bond order of

2

1

or 0.5