Which of the following statements about an E1 mechanism is true?
A)The identity of the leaving group affects the rate of reaction.
B)The reaction follows second-order kinetics.
C)The reaction is slowest with tertiary substrates.
D)Polar aprotic solvents favor the E1 mechanism.

Question

Quizplus · Accepted Answer

In an E1 mechanism, the leaving group must leave before the proton is removed, and thus the rate of reaction is affected by the stability of the leaving group. A more stable leaving group will leave more easily, leading to a faster reaction. The reaction follows first-order kinetics because the rate-determining step involves only one molecule. The reaction is fastest with tertiary substrates because they have more stable carbocations. Polar protic solvents favor the E1 mechanism because they stabilize the carbocation intermediate.

Which of the Following Statements About an E1 Mechanism Is