The density of water is not same at all temperatures because of its anomalous expansion. The density is maximum at:
A
0oC
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B
4oC
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C
40oC
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D
100oC
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Solution
The correct option is B4oC Due to anomalous expansion of water the density of water is not same at all temperatures. When water is cooled from room temperature it first contracts in volume and becomes increasingly dense as do other liquids but at 4oC water reaches maximum density.