Q. Which one of the following pairs is isostructural (i.e. having the same shape and hybridization)?
A) BF₄⁻ and NH₄⁺
B) BCl₃ and BrCl₃
C) NH₃ and NO₃⁻
D) NF₃ and BF₃
Explanation
[Solution from source] In BF₄⁻ and NH₄⁺ the central atom has four bond pairs and no lone pair: sp³, tetrahedral. BCl₃ is trigonal planar while BrCl₃ is T-shaped; NH₃ is pyramidal while NO₃⁻ is trigonal planar; NF₃ is pyramidal while BF₃ is planar. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.