Question

Which of the following statements regarding the E1 mechanism is not correct?

• A. the rate-determining step in $E1$ reactions is unimolecular
• B. $E1$ reaction is normally of first order
• C. $E1$ reaction mechanism usually occur in one step
• D. $E1$ reaction mechanism is a multistep process

Answer 1

The correct option is C $E1$ reaction mechanism usually occur in one step

$E1$ reaction mechanism occurs in two steps:

In the first step loss of leaving group takes place, it is a slow step in which carbocation forms which can further be rearranged to gain more stability.

In second step base attacks to the neighboring hydrogen forcing the electrons to form a double bond.