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JAMB Chemistry 2012 Question 40

Question 40

Introduction to Organic Chemistry

Geometric isomerism can exist in

  1. A.hex-3-ene
  2. B.hexane
  3. C.prop-l-ene
  4. D.3-methyl but-l-ene
Show the answer and explanation

Answer: A (hex-3-ene)

Explanation

Hex-3-ene has two different groups on each carbon of the C=C, so cis and trans forms exist; the others have two identical groups on one double-bond carbon or no double bond.