Which of the following statements is/are correct? I. Pure water freezes at 0ºC under normal...

WAEC 1992

Which of the following statements is/are correct? I. Pure water freezes at 0ºC under normal pressure ll. Water has its highest density at 4ºC. III. The volume is highest at 4ºC,

A. I only
B. II only
C. I and II only
D. I and III only
E. II and III only

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Correct Answer: Option C

Explanation

Under standard atmospheric pressure, pure water freezes at 0ºC. Water is most dense at around 4ºC. As it cools below this temperature, it begins to expand.

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