Question

The ion which is isoelectronic with CO, has same bond order and magnetic behaviour is –

• A. CN^–
• B. O₂⁺
• C. O₂^–
• D. N₂⁺

Answer 1

Answer: (A)

CN^–

Answer 2

CO has 6 + 8 = 14 electrons and CN^– has

6 + 7 + 1 = 14 electrons. Both have bond order 3 and

diamagnetic in nature due to absence of unpaired electron.