Which of the following is a characteristic of E2 elimination reactions?

Practice Questions

Q1
Which of the following is a characteristic of E2 elimination reactions?
  1. Requires a strong nucleophile
  2. Involves a carbocation intermediate
  3. Occurs in a single concerted step
  4. Produces a racemic mixture

Questions & Step-by-Step Solutions

Which of the following is a characteristic of E2 elimination reactions?
  • Step 1: Understand that E2 elimination reactions involve the removal of a proton (H) and a leaving group (like a halide) from a molecule.
  • Step 2: Recognize that this process happens in one single step, meaning everything occurs at the same time.
  • Step 3: Identify that a base (a substance that can accept protons) is involved in the reaction, as it takes away the proton.
  • Step 4: Note that as the base removes the proton, the leaving group simultaneously departs from the molecule.
  • Step 5: Conclude that the key characteristic of E2 reactions is this concerted mechanism where both actions happen together.
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