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Which of the following statements about the E2 elimination mechanism is true?

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Question: Which of the following statements about the E2 elimination mechanism is true?

Options:

  1. It involves a carbocation intermediate.
  2. It requires a strong base.
  3. It is a unimolecular process.
  4. It occurs in a stepwise manner.

Correct Answer: It requires a strong base.

Solution:

E2 elimination requires a strong base to abstract a proton while the leaving group departs, and it occurs in a single concerted step.

Which of the following statements about the E2 elimination mechanism is true?

Practice Questions

Q1
Which of the following statements about the E2 elimination mechanism is true?
  1. It involves a carbocation intermediate.
  2. It requires a strong base.
  3. It is a unimolecular process.
  4. It occurs in a stepwise manner.

Questions & Step-by-Step Solutions

Which of the following statements about the E2 elimination mechanism is true?
  • Step 1: Understand that E2 elimination is a type of chemical reaction.
  • Step 2: Know that in E2, a strong base is needed to remove a hydrogen atom (proton) from the molecule.
  • Step 3: Recognize that while the base removes the proton, a leaving group (like a halide) is also leaving the molecule.
  • Step 4: Realize that this process happens in one single step, meaning both actions occur at the same time without any intermediate stages.
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