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What is negative deviation?...

What is negative deviation?

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When the vapour pressure of a solution is lower than the predicted value by Raoult’s law, it is called negative deviation.’ In case of negative deviation the intermolecular attractive forces between A – A and B – B are weaker than those between A ¬–B.
Examples of solutions showing negative deviation
(i) `HNO_(3)` and water (ii) Chloroform and acetone
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VMC MODULES ENGLISH-THEORY OF SOLUTIONS-JEE Advanced (Archive)
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