Q58 / 180 · NEET 2020 (Phase 1) · Chemistry

Elimination reaction of 2-Bromo-pentane to form pent-2-ene is
(a) β-Elimination reaction
(b) Follows Zaitsev rule
(c) Dehydrohalogenation reaction
(d) Dehydration reaction

  • A
    (a), (c), (d)
  • B
    (b), (c), (d)
  • C
    (a), (b), (d)
  • Correct answer
    D
    (a), (b), (c)

Solution

Figure

  • This reaction is an example of β -elimination.
  • Hydrogen is removed from β -carbon and halogen from α -carbon, hence, dehydrohalgoenation reaction.
  • Generally in E2 reaction Zaitsev alkene is formed as major product (more stable alkene).

Hence, the correct answer is option: 'D'.

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