Question

Which of the following statements regarding the E1 mechanism is wrong?


A)
Reactions by the E1 mechanism are multi-step reactions

B)
Reactions by the E1 mechanism are generally first order.

C)
Reactions by the E1 mechanism usually occur in one step.

D)
Reactions by the E1 mechanism are unimolecular in the rate-determining step.
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Answer 1

Answer:

Reactions by the E1 mechanism usually occur in one step

Answer 2

The correct option is C.

• E1 reactions take place in two steps.
• In the first step, the leaving group is eliminated to form carbonation by the influence of a base.
• In the next step, a beta proton is eliminated to form an alkane.
• The reaction rate depends on the concentration of the substrate so, it is the first-order reaction and the rate-determining step is unimolecular.