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TS EAMCET · Chemistry · Haloalkanes and Haloarenes

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

  1. A trans-pent-2-ene
  2. B 2-ethoxypentane
  3. C pent-1-ene
  4. D 3-ethoxypentane
Verified Solution

Answer & Solution

Correct Answer

(A) trans-pent-2-ene

Step-by-step Solution

Detailed explanation

When 2-bromopentane is heated with potassium ethoxide, we get trans-pent-2-ene. Because when alkyl halides react in ethanol with potassium ethoxide, it give trans product as major product due to more symmetrical nature as compared to cis-isomer. The reaction occurs as follows:…