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| Q. |
When water freezes its density – |
| A. | Decreases |
| B. | Becomes Zero |
| C. | Remains constant |
| D. | Increases |
| Answer» A. Decreases | |
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Explanation: Water at ordinary temperatures contracts and in-creases in density as it is cooled, like most substances. But at about 4°C it reaches a maximum density and then decreases in density as it approaches the freezing point. This is referred to as anomalous property of water. |
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