Which one of the following is paramagnetic?

• A

  \(\mathrm{N}_2\)
• Correct answer
  B

  \(\mathrm{NO}\)
• C

  \(\mathrm{CO}\)
• D

  \(\mathrm{O}_3\)

Solution

Hints:
, Valence electron \(=11\)

Hence, the correct answer is option: 'B'.