The freezing point of a 0.01 M aqueous glucose solution at 1 atmosphere is `-0.18^(@)C`. To it, an addition of equal volume of 0.002 M glucose solution will , produced a solution with freezing point of nearly

Options

A. `-0.036^(@)C`
B. `-0.108^(@)C`
C. `-0.216^(@)C`
D. `-0.422^(@)C`

Answer

B

Explanation

`DeltaT_(f)=(K_(f)xx1000xxw)/(mxxW)=-0.108^(@)C`