JAMB Chemistry 2025 Objective — Question 23

Question 23 of 40 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2025 Objective paper, with the correct answer and a full explanation.

The major product when propan-2-ol is dehydrated over hot Al₂O₃ is

A. Propane
B. PropeneCorrect
C. Propan-1-ol
D. Propanone

Explanation

Dehydration of alcohols eliminates water to form alkenes. Propan-2-ol heated over Al₂O₃ at ~170°C loses water to give propene (CH₃CH=CH₂).

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