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Which of the following is not a property of water? A It becomes more dense 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 form hydrogen bonds with other molecules by adhesion.

Which of the following is not a property of water?

A

It becomes more dense 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 form hydrogen bonds with other molecules by adhesion.

 
 
 

Grade:12th pass

1 Answers

Rituraj Tiwari
askIITians Faculty 1792 Points
4 years ago
A. When water freezes, it is converted into ice. Ice has a cage like structure and thus, its density is less than water. Hence, water becomes less dense when it freezes.
B. Water is a polar solvent and thus, many gases are soluble in water. Hence, it dissolves molecules in the air.
C. Water has high energy hydrogen bonds. When these bonds break, heat is released which is absorbed by the water due to its high specific heat capacity.
D. Surface tension is interaction between water molecules which results due to formation of hydrogen bonds between water molecules.
E. Adhesion is the force of attraction between different molecules. Water can form hydrogen bonds with other molecules and this is called adhesion.
Hence, statement A is incorrect.
So, the correct answer is 'It becomes more dense when it freezes'.

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