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JAMB Chemistry 1999 Question 43

Question 43

Introduction to Organic Chemistry

2-methylprop-1-ene is an isomer of

  1. A.but-2-ene
  2. B.pent-1-ene
  3. C.2-methylbut-2-ene
  4. D.2-methylbut-1-ene
Show the answer and explanation

Answer: A (but-2-ene)

Explanation

Isomers have the same molecular formula. 2-methylprop-1-ene is C4H8, the same as but-2-ene; the other three are C5H10.