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MHT CET · Chemistry · General Organic Chemistry

Which of the following alkenes does NOT exhibit cis-trans isomerism?

  1. A But-1-ene
  2. B But-2-ene
  3. C 3,4-Dimethylhex-3-ene
  4. D Pent-2-ene
Verified Solution

Answer & Solution

Correct Answer

(A) But-1-ene

Step-by-step Solution

Detailed explanation

For any compound to exhibit cis-trans isomerism, it must contain identical atoms or groups of atoms on either side of double bond. Hence, but-1-ene \(\mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}=\mathrm{CH}_2\) will not exhibit cis-trans isomerism.