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  4. Which one of the following liquid pairs will exhibit a positive deviation from Raoult's law?

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Q. Which one of the following liquid pairs will exhibit a positive deviation from Raoult's law?

J & K CETJ & K CET 2011Solutions

Solution:

In case of positive deviation from Raoult's law $ A-B $ interactions are weaker than those between $ A-A $ or $ B-B. $ Water and ethanol, ethanol and chloroform, acetone and ethanol acetic acid and toluene etc. liquid pairs shows positive deviation from Raoult's law.