Moderate

Removal of halogen and hydrogen atom is_________________?

Correct answer: C. dehydrohalogenation

  • A. halogenation
  • B. dehalogenation
  • C. dehydrohalogenation
  • D. hydrohalogenation

Explanation

Removal of a hydrogen atom and a halogen atom from adjacent carbon atoms is dehydrohalogenation, usually producing an alkene. Students may choose dehalogenation because a halogen is removed, but dehalogenation alone does not specifically include removal of hydrogen.

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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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