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

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

Options:

  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.

Correct Answer: It forms a carbocation intermediate.

Solution:

E1 elimination involves the formation of a carbocation intermediate, making it a two-step process.

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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