Pick correct pair about the difference between E1 and E2 mechanism of tertiary butyl bromide forming an alkene.

Explanation

E1 mechanism- weak base and alkyl halide, E2 mechanism- strong base and alkyl halide.In the E1 mechanism, the rate-determining step is the formation of a carbocation intermediate, followed by the loss of a leaving group and the formation of a double bond. The reaction proceeds in two steps and requires a strong base to remove a proton from the beta-carbon.In contrast, in the E2 mechanism, the reaction occurs in a single step and requires a strong base to remove a proton from the beta-carbon and eliminate the leaving group at the same time.so, in this case both E1 and E2 mechanisms can occur. However, the E1 mechanism is favored with a weak base, whereas the E2 mechanism is favored with a strong base. Therefore, the correct pair is B) El mechanism- weak base and alkyl halide, E2 mechanism- strong base and alkyl halide.