Question: what is the difference between e1 and e2 mechanism?
Answer: The key differences between the E2 and E1 mechanism are: 1) E2 is a concerted mechanism where all the bonds are broken and formed in a single step. The E1, on the other hand, is a stepwise mechanism. ... 3) E2 is a second order reaction and the rate depends on the concentration of both, the substrate and the base.