Question

Lowering of vapour pressure is highest for.

• A. Urea
• B. $0.1M$ glucose
• C. $0.1MMgSO_{4}$
• D. $0.1MBaCl_{2}$

Answer 1

Answer: (D)

$0.1MBaCl_{2}$

Answer 2

$\frac{P^{0} - P_{s}}{P^{0}} = \text{molality} \times (\text{1-}\alpha + x\alpha + y\alpha)$ the value of $P^{0} - P_{s}$ is maximum for $BaCl_{2}$.