Home › CBSE Class 12 › Chemistry › Ideal and Non-Ideal Solutions › A vapour pressure higher than predicted means th…
A vapour pressure higher than predicted means the solution shows:
APositive deviation
BNegative deviation
CIdeal behaviour
DConstant boiling
Answer & Solution
Correct answer: A. Positive deviation
1. Raoult's law gives a predicted vapour pressure.
2. The measured value here comes out above that prediction.
3. This is a positive deviation from Raoult's law.
_Source: NCERT Class 12 Chemistry Part I, Chapter 2, Solutions._
Related questions
The nitric acid and water azeotrope holds nitric acid at about:Distilling an ethanol and water mixture stops at about:A large negative deviation produces an azeotrope that is:A large positive deviation produces an azeotrope that is:The components of an azeotrope cannot be separated by:Binary mixtures boiling at a constant temperature are called:Chloroform and acetone form a hydrogen bond, so the vapour pressure:A mixture of phenol and aniline shows: