Solved: CHEMISTRY Question for NEET | Sushrut

Back to Directory

NEET CHEMISTRYMedium

Which one of the following species has a plane triangular shape?

A

$N_3^-$

B

$NO_3^-$

C

$NO_2^-$

D

$CO_2$

Step-by-Step Solution

Analyze $NO_3^-$ (Nitrate Ion): The central Nitrogen atom has 5 valence electrons. An electron is added for the negative charge, making 6. It forms sigma bonds with 3 Oxygen atoms (and \pi bonds which don't affect steric number). There are 3 bonding domains and 0 lone pairs.

Hybridization: $sp^2$ [Concept linked to Hybridisation types in Class 12 Chemistry, Table 5.2].
Shape: Trigonal Planar (Plane Triangular).

Analyze $N_3^-$ (Azide Ion): Linear structure ( $sp$ hybridization).
Analyze $NO_2^-$ (Nitrite Ion): Nitrogen is bonded to 2 Oxygen atoms and has 1 lone pair.

Hybridization: $sp^2$ .
Shape: Bent or Angular.

Analyze $CO_2$ (Carbon Dioxide): Carbon forms double bonds with two Oxygen atoms.

Hybridization: $sp$ .
Shape: Linear.

Practice Mode Available

Master this Topic on Sushrut

Join thousands of students and practice with AI-generated mock tests.