JAMB Biology 2011 Objective — Question 45
Question 45 of 60 from the Joint Admissions and Matriculation Board (JAMB) Biology 2011 Objective paper, with the correct answer and a full explanation.
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Which of the following methods does not make water fit for drinking?
- A. A. Addition of chlorine
- B. B. Boiling
- C. C. Distillation
- D. D. Addition of alumCorrect
Explanation
Alum coagulates solid impurities in water (the water must still be boiled to kill bacteria); it does not by itself make water fit for drinking.
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