Q. Which one of the following species has plane triangular shape?
A) $N_3^-$
B) $NO_3^-$
C) $NO_2^-$
D) $CO_2$
Explanation
[Solution] $NO_3^-$ is $sp^2$ with no lone pair on N: trigonal planar. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.