CBSE 2025 · Region 7 · Set 1 · Q17 · 2 marks
What is meant by positive deviation from Raoult's law ? Give an example. What type of azeotrope is formed by positive deviation ?
Marking-scheme solution
When vapour pressure of the solution is higher than expected from the ideal
behaviour.
Example : ethanol and acetone/ carbon disulphide and acetone
Minimum boiling azeotrope
SolutionsIdeal and Non-ideal SolutionsUnderstandvery_short_answermedium
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CBSE Class 12 Chemistry past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.