JAMB Chemistry 2025 Objective — Question 30
Question 30 of 40 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2025 Objective paper, with the correct answer and a full explanation.
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Which statement about glucose is correct?
- A. It contains five carbonyl groups
- B. It has an aldehyde group and five hydroxyl groupsCorrect
- C. It is a ketose
- D. It contains a carbonyl group but no hydroxyl groups
Explanation
Glucose is an aldohexose: a 6-carbon sugar with one aldehyde group (–CHO) at C-1 and five hydroxyl groups (–OH) at C-2 to C-6.
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