Q .     When `25` `g` of a non-volatile solute is dissolved in `100.g` of water, the vapour pressure is lowered by `2.25 × 10^-1` `mm`. If the vapour pressure of water at `20°C` is `17.5` `mm`, what is the molecular weight of the solute?

BITSAT 2008
A

`300` `g`

B

`450` `g`

C

`350` `g`

D

`250` `g`

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