Q. In which of the following pairs of molecules/ions, the central atoms have sp² hybridization?
A) BF₃ and NH₂⁻
B) NO₂⁻ and NH₃
C) BF₃ and NO₂⁻
D) NH₂⁻ and H₂O
Explanation
[Solution from source] BF₃ has 3 bond pairs and no lone pair (sp²); NO₂⁻ has 2 bond pairs and 1 lone pair on N (sp²). NH₂⁻, NH₃ and H₂O each have 4 electron pairs on the central atom and are sp³. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.