Draw the product of the following reaction and indicate if the predominate mechanism is either SN1, SN2, or neither. Which of the following statements regarding the E1 mechanism is wrong? Reactions by the E1 mechanism are unimolecular in the rate-determining step. Reactions by the E1 mechanism are generally first order. Reactions by the E1 mechanism usually occur in one step. Reactions by the E1 mechanism are multi-step reactions.