Question

Which of the following species has an odd electron octet ?

• A. boron trifluoride BF3. (B) 15 ND. (C) PC (D)
• B. nitrogen monoxide
• C. phosphorus pentachloride
• D. sulphur hexafluoride

Answer 1

Answer:

B. nitrogen monoxide

Nitrogen monoxide (NO)

Nitrogen monoxide has an odd electron, also known as an unpaired electron or a free radical. Its electron configuration is:

• Nitrogen (N): 7 electrons

• Oxygen (O): 8 electrons

In the NO molecule, the nitrogen and oxygen atoms share electrons, but one electron remains unpaired, resulting in an odd electron octet.