Question

The depression in freezing point observed for a formic acid solution of concentration $05\, mL\, L ^{-1}$ is $00405^{\circ} C$ Density of formic acid is $105 \, g \, mL ^{-1}$ The Van't Hoff factor of the formic acid solution is nearly : (Given for water $k _{ f }=186 \, K \, kg \, mol ^{-1}$ )

• A. $0.8$
• B. $1.1$
• C. $1.9$
• D. $2.4$

Answer 1

Answer: (C)

$1.9$

Answer 2

The correct option is (C).