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Water has maximum density at
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- 100°C
- 0°C
- 4°C
- 273°C
- 100°C
Correct Option: C
The maximum density of water occurs at 4 °C because at this temperature two opposing effects are in balance. Water is an exceptional compound that has a lower density in the solid phase than the liquid phase (i.e., ice floats on water). This is actually due to the ion nature of water in the liquid phase, which packs the molecules tightly together.
