2-Bromopentane is heated with potassium ethoxide in ethanol. The major product obtained is

Question

2-Bromopentane is heated with potassium ethoxide in ethanol. The major product obtained is (A) trans-2-pentene (B) 1-pentene (C) 2-ethoxy pentane (D) 2-cis-pentene

Tardigrade Admin · Accepted Answer

Alkyl halides react with alcoholic KOH which favours elimination reaction. Trans-2penetene is more symmetrical when compared to cis-isomers. So major product formed is trans-2-pentene. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/e00bacd030002e26d8dad062c8f09114-.png" />

Q. 2-Bromopentane is heated with potassium ethoxide in ethanol. The major product obtained is

trans-2-pentene

1-pentene

2-ethoxy pentane

2-cis-pentene

Alkyl halides react with alcoholic $K O H$ which favours elimination reaction. Trans-2penetene is more symmetrical when compared to cis-isomers. So major product formed is trans-2-pentene.