Which of the following statements about the E1 elimination mechanism is true?

Practice Questions

Q1
Which of the following statements about the E1 elimination mechanism is true?
  1. It involves a concerted mechanism.
  2. It forms a carbocation intermediate.
  3. It is favored by strong bases.
  4. It occurs in a single step.

Questions & Step-by-Step Solutions

Which of the following statements about the E1 elimination mechanism is true?
  • Step 1: Understand that E1 elimination is a type of chemical reaction.
  • Step 2: Know that E1 stands for 'unimolecular elimination'.
  • Step 3: Recognize that E1 elimination happens in two main steps.
  • Step 4: In the first step, a leaving group (like a halide) departs from the molecule, creating a carbocation (a positively charged carbon atom).
  • Step 5: In the second step, a base removes a proton (H) from a neighboring carbon, leading to the formation of a double bond.
  • Step 6: Conclude that the formation of the carbocation intermediate is what makes E1 a two-step process.
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