Asked in UHS MDCAT 2017 2017Moderate

In the elimination reaction, alcoholic KOH is used. OH- in this case, will act as:

Correct answer: B. Base

  • A. Electrophile
  • B. Base
  • C. Leaving group
  • D. Acid

Explanation

Bases are proton acceptors and OH- is a base as it eliminates H+ (proton) from the reactant and forms a water molecule.

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About Elimination Reactions

Elimination reactions remove a leaving group and a hydrogen atom from adjacent carbon atoms to form an alkene. The topic covers dehydrohalogenation of alkyl halides, E1 and E2 mechanisms, the role of base, solvent and substrate structure, and Zaitsev orientation, which is often contrasted with substitution.

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