Question

In solvolysis of alkyl halides, substitution of alkyl groups at the B 'carbon atom increases E1 over SN1.

Answer 1

The factors that influence whether an elimination reaction proceeds through an E1 or E2 reaction are almost exactly the same as the factors that influence the S_N1/S_N2 pathway. Cation stability, solvents and basicity play prominent roles. However, basicity may be the single most important of these factors