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The vapour pressure of water at 20^(...

The vapour pressure of water at `20^(@)C` is 17.54 mm . When 20 g of a non-ionic , substance in dissolved by 0.30 mm . What is the molecular weight of the substance ?

A

`210.5 gmol ^(-1)`

B

`206.88 g mol ^(-1)`

C

`215.2 g mol ^(-1) `

D

`200.8 g mol ^(-1)`

Text Solution

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The correct Answer is:
A
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