Post-UTME Biology 2011 Objective — Question 19

Question 19 of 24 from the Post-UTME Screening (Post-UTME) Biology 2011 Objective paper, with the correct answer and a full explanation.

Water for town supply is chlorinated to make it free from

A. bad odour
B. bacteriaCorrect
C. temporary hardness
D. permanent hardness

Explanation

Chlorination primarily disinfects water by killing bacteria. (Note: this question is a near-duplicate of one found in the FUTO 2013/2014 Type D session in this same PDF set; the same independently-worked answer is used here.)

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