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WAEC Chemistry 2015 Objective — Question 43

Question 43 of 50 from the West African Examinations Council (WAEC) Chemistry 2015 Objective paper, with the correct answer and a full explanation.

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Which of the following compounds is a secondary alkanol?

  • A. Ethanol
  • B. 2-methylbutan-2-ol
  • C. 3-methylpentan-2-olCorrect
  • D. Propan-1-ol

Explanation

3-methylpentan-2-ol has its hydroxyl-bearing carbon attached to two alkyl groups, making it a secondary alkanol; ethanol and propan-1-ol are primary, and 2-methylbutan-2-ol (three alkyl groups) is tertiary.

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