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1.Solution and Colligative properties
medium
An aqueous solution of hydrochloric acid
A
Obeys Raoult’s law
B
Shows negative deviation from Raoult’s law
C
Shows positive deviation from Raoult’s law
D
Obeys Henry’s law at all compositions
(AIIMS-2009)
Solution
Shows negative deviation from Raoult’s law. If the attraction between different molecules, for example between $HCl$ and $H_2O$ molecules, is stronger, the escaping tendency from the solution to the vapour phase will be smaller, then the partial vapour pressure will be smaller than predicted by Raoult’s law and the system exhibits a negative deviation.
Standard 12
Chemistry
