Answer :

Dimerisation is a process of association (addition reaction) of two similar molecules in order to gain stability which was absent in the monomer form.

NO2 being unstable dimerises to N2O4 to exist as a stable molecule.

NO2 beforehand, was an odd electron molecule (7+16=23) due to which it tries to unite with another of its kind to become stable.

That is why it dimerises.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses

On heating compouChemistry - Exemplar

Explain why NCl<sChemistry - Exemplar