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JAMB Chemistry 2007 Question 38

Question 38

Alkanols

Which of the compounds is a tertiary alkanol?

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

Answer: C (CH3 — C(CH3)(OH) — CH2 — CH3)

Explanation

In a tertiary alkanol the carbon bearing −OH is joined to three other carbons. In C that carbon carries two CH3 groups and a CH2CH3 group.