Question

Match List-I with List-II and select the correct option: 

• A. a-i, b-iv, c-iii, d-ii
• B. a-ii, b-iii, c-iv, d-i
• C. a-iv, b-iii, c-ii, d-i
• D. a-iii, b-iv, c-i, d-ii

Hint:

The bond order can help predict the stability and bond strength of a molecule. A higher bond order indicates a more stable and stronger bond.

Answer 1

The Correct Option is D

We know that the bond order of a molecule is calculated as:

Bond order = 1/₂ (number of bonding electrons - number of antibonding electrons)

For the molecules:

• NO (15 electrons) has a bond order of 2.5.
• CO (14 electrons) has a bond order of 3.0.
• O₂ (16 electrons) has a bond order of 2.0.
• O₂ (17 electrons) has a bond order of 1.5.

Thus, the correct matching is a-iii, b-iv, c-ii, d-i.