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The relative lowering of vapour pressure...

The relative lowering of vapour pressure of an aqueous solution of non-volatile solute of molecular weight 60 (which neither dissociates nor associates in the solution) is 0.018. If `K_(1)` of water is `1.86^(@) m^(-1)`, the depression in freezing point will be

A

`0.93^(@)` C

B

`3.72^(@)` C

C

`1.86^(@)` C

D

`0.018^(@)` C

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The correct Answer is:
C
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