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Vapour pressure of pure solvent is 0.8 m...

Vapour pressure of pure solvent is 0.8 mm of Hg at a particular temperature. On addition of non volatile solute ‘A’ the vapour pressure of solution become 0.6 mm of Hg. The mole fraction of component ‘A’ is –

A

0.25

B

0.75

C

0.5

D

0.35

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