alleryIn positive deviation the A-B interactions are, against the rest:
AThe same ones
BMissing ones
CWeaker ones
DStronger ones
Answer & Solution
Correct answer: C. Weaker ones
1. Positive deviation raises the vapour pressure above prediction.
2. That happens when solute and solvent hold each other loosely.
3. So A-B interactions are weaker than A-A and B-B.
_Source: syllabus Chemistry Part I, Chapter 2, Solutions._
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