MCQ
In which case Raoult's law is not applicable
- ✓$1M\,NaCl$
- B$1 M$ urea
- C$1 M $ glucose
- D$1 M $ sucrose
✓
Answer
Correct option: A.
$1M\,NaCl$
a
Raoult's law is not applicable if the total number of particles of solute changes in the solution due to association or dissociation.
Raoult's law is not applicable if the total number of particles of solute changes in the solution due to association or dissociation.
Urea, glucose and sucrose are the non-electrolytes. They cannot dissociate into ions.
$NaCl$ dissociates into $Na ^{+}$ ions and $Cl ^{-}$ ions.
Hence, option $A$ is correct.
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