Q. $150\, g$ of acetic acid was contaminated with $10.2 g$ ascorbic acid $\left( C _6 H _8 O _6\right)$ to lower down its freezing point by $\left( x \times 10^{-1}\right)^{\circ} C$. The value of $x$ is (Nearest integer) [Given $K _{ f }=3.9\, K\, kg \, mol ^{-1}$; Molar mass of ascorbic acid $=176\, g\, mol ^{-1}$ ]
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