Q. Which of the following is not tetrahedral?
A) ${BF}_{4}^{-}$
B) ${NH}_{4}^{+}$
C) ${CO}_{3}^{2 -}$
D) ${SO}_{4}^{2 -}$
Explanation
(c)
In ${CO}_{3}^{2 -}$ ion the C-atom undergoes $sp^{2}$-hybridisation. It has triangular planar structure. While ${BF}_{4}^{-},\ {NH}_{4}^{+}\$and$\ {SO}_{4}^{2 -}\$have tetrahedral structure.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.