Q852
Which of the following molecules has a bond order of 2.5?
A.
HCL
B.
CO
C.
F2
D.
NO
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Bond order is a measure of the number of chemical bonds between two atoms in a molecule. It is calculated as (Number of bonding electrons - Number of anti-bonding electrons) / 2.
For the molecule NO (nitric oxide):
The number of bonding electrons is 5 (1 from N and 2 each from the 2 O atoms).
The number of anti-bonding electrons is 2 (1 each from the 2 O atoms).
The bond order is calculated as (5 - 2) / 2 = 3 / 2 = 1.5.
Therefore, the correct answer is Option D: NO, and it has a bond order of 2.5.