1. Tardigrade
  2. Question
  3. Chemistry
  4. Elimination reaction of 2-Bromo-pentane to form pent-2-ene is: (a) β-Elimination reaction (b) Follows Zaitsev rule (c) Dehydrohalogenation reaction (d) Dehydrationreaction

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Elimination reaction of $2-Bromo-pentane$ to form $pent-2-ene$ is :
(a) $\beta$-Elimination reaction
(b) Follows Zaitsev rule
(c) Dehydrohalogenation reaction
(d) Dehydrationreaction

NEETNEET 2020Haloalkanes and Haloarenes

Solution:

This reaction is an example of $\beta$-elimination.Hydrogen is removed from $\beta-$ carbon and halogen from $\alpha$-carbon, hence dehydrohalogenation reaction. Pent-2-ene is major product known as Saytzeff's product and it is more stable alkene than Pent-1-ene.
Generally, in $E _{2}$ reaction Zaitsev alkene is formed as a major product (more stable alkene).

Solution Image