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The mass of a non-voltalle solute (molar...

The mass of a non-voltalle solute (molar mass 80 g `mol ^(-1)` ) which should be dissolved in 92 g of toluene to reduce its vapour pressure to ` 90 %`

A

` 10` g

B

20 g

C

9.2 g

D

8.89 g

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The correct Answer is:
D
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