Which of the following molecule is inactive in the infrared spectrum?

اورکت اسپیکٹرم میں مندرجہ ذیل میں سے کون سا انو غیر فعال ہے؟

CO₂

N₂

Benzene

None of these

Infrared activity requires a molecule to have a dipole moment change during vibration.

N₂ (Nitrogen gas) is a homonuclear diatomic molecule with no dipole moment, making it IR inactive.