Question

Which of the following molecules have bond order equal to 1?

(a) NO, HF, HCl, Li₂ , CO

(b) H₂ , Li₂ , HF, Br₂ , HCI

(c) Li₂ , B₂ , CO, NO, He₂⁺

(d) B₂ , CO, He₂⁺ , NO, HF

Answer 1

(b) H₂ , Li₂ , HF, Br₂ , HCI

Solution:

Bond order of He₂⁺ = 0.5

Bond order of NO = 2.5

Bond order of CO = 3