All are properties of water except:
Correct answer: D. Becomes denser when it freezes.
- A. Universal solvent
- B. Polar nature
- C. Hydrogen bonding
- D. Becomes denser when it freezes.
Explanation
The statement in option (d) is false and not a property of water. Water actually becomes less dense when it freezes. This occurs because the hydrogen bonds between water molecules form a crystalline structure in ice that is less compact than in liquid water, causing ice to float.
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About Biological Importance of Water
Water supports life through its polarity, hydrogen bonding and ability to dissolve ionic and polar substances. Its high specific heat, heat of vaporization, cohesion, adhesion and incompressibility help regulate temperature, transport materials and maintain structure, while hydrolysis and osmosis depend directly on water.
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