Chapter-4 - 11th - Liquids and Solids Preparation Multiple Questions and Answers.




26.Steam causes more severe burn than the boiling water because it possesses.
A. Latent heat of fusion
B. Latent heat of vaporization
C. Latent heat of sublimation
D. All of the above

27.Water has a maximum density at
A. 0°C
B. 2°C
C. 4°C
D. 100°C

28.The conversion of vapours back into their liquid state is called
A. Crystallization
B. Vaporization
C. Vaporization
D. Condensation

29.Formation of vapours from the surface of a liquid is called
A. Vapourization
B. Evaporation
C. Condensation
D. Cracking

30.When water freezes at 0°C its density decreases due to
A. Change of bond angles
B. Cubic structure of ice
C. Empty space present in the structure of ice
D. Change of bond length

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