passwella.
Menu

JAMB Chemistry 2006 Question 16

Question 16

Introduction to Organic Chemistry

2-methylbut-2-ene has the structure

  1. A.C2H5CH(CH3) — CH = CH2
  2. B.CH3 — CH2 — C(CH3) = CH2
  3. C.CH3 — CH(CH3) — CH = CH2
  4. D.CH3 — CH = C(CH3) — CH3
Show the answer and explanation

Answer: D (CH3 — CH = C(CH3) — CH3)

Explanation

But-2-ene has a 4-carbon chain with C=C between C2 and C3; a methyl group on C2 gives CH3−C(CH3)=CH−CH3, which is option D read from the other end.