# How is dimerization done?

Nitrogen dioxide is dimerized to form dinitrogen tetroxide according to the equation $\ce{2NO2 -> N2O4}$. How do two molecules of one compound fuse to form another?

• I think you can answer your question easily. Draw the Lewis structures for NO2 and you'll see how the dimer is obvious solution to some problem. Feb 23 '16 at 7:55
• The same way as any other reaction takes place?
– bon
Feb 23 '16 at 12:38

It's better to think of the dimer as $(NO_2)_2$ rather than $N_2O_4$.