Pure water contaminated with quicklime will have a pH of
A.
1
B.
6
C.
7
D.
8
Correct Answer: Option D
Explanation
Pure water contaminated with quicklime (calcium oxide) will have a highly alkaline pH, significantly above 7. The reason being that quicklime (CaO) reacts vigorously with water to form slaked lime (calcium hydroxide, Ca(OH)₂), a strong base.
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