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Question
Which one of the statements given below concerning properties of solution, describes a colligative effect ?
Options
A.Boiling point of pure water decreases by the addition of ethanol
B.Vapour pressure of pure water decreases by the addition of nitric acid
C.Vapour pressure of pure benzene decreases by the addition of naphthalene
D.Boiling point of pure benzene increases by the addition of toluene
Solution
The decreases in vapour pressure of benzene by addition of naphthalene is an example of colligative property.
Change in boling point of solvent may also be due to formation of hydrogen bond and or interaction with between solvent molecule and solute molecule.
Change in boling point of solvent may also be due to formation of hydrogen bond and or interaction with between solvent molecule and solute molecule.
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