Q. Which of the following species contains three bond pairs and one lone pair around the central atom?
A) PCl₃
B) H₂O
C) BF₃
D) NH₂⁻
Explanation
[Solution from source] P in PCl₃ has 5 valence electrons: three form bonds with Cl and two remain as one lone pair (pyramidal). H₂O and NH₂⁻ each have two bond pairs and two lone pairs, and BF₃ has three bond pairs and no lone pair. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.