Q. Lowering of vapour pressure is highest for
A) $0.1\ M\ BaCl_{2}$
B) 0.1 M glucose
C) $0.1\ M\ MgSO_{4}$
D) Urea
Explanation
(a)
$\frac{p^{0} - p_{s}}{p^{0}} = molality \times (1 - \alpha + x\alpha + y\alpha)$
The value of $p^{0} - p_{s}$ is maximum for $BaCl_{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.