Which of the following is not a property of water?
(a) It becomes denser when it freezes. (b) It dissolves molecules in the air. (c) It absorbs heat when the hydrogen bonds break (d) It forms hydrogen bonds with other water molecules to create surface tension. (e) It forms hydrogen bonds with other molecules by adhesion.
Answer a) It becomes denser when it freezes.
When water freezes, it is converted into a solid form known as ice. Ice density is less than water as it forms a cage-like structure. So water becomes less dense when freezes.
Water is a polar solvent and thus, many gases are soluble in water.
H₂O has high-energy hydrogen bonds. Heat is released when the hydrogen bonds break which is absorbed by the water due to its high specific heat capacity.
Surface tension is the interaction between H₂O molecules that results due to the formation of hydrogen bonds between water molecules.
Water has a property to form hydrogen bonds with other molecules and it is called adhesion.
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