Q. Which one of the following species has plane triangular shape?
AIPMTAIPMT 2014Chemical Bonding and Molecular Structure
Solution:
Species with $sp^2$ hybridisation are plane triangular in shape. Among the given species $NO_3^- $ is $sp^2$ hybridised with no lone pair of electrons on central atom, N. Whereas, $N_3$, $NO_2^-$ and $CO_2$ are sp hybridised with a linear shape.
