If P^(@) and P(S) are the vapour pressur...

If `P^(@)` and `P_(S)` are the vapour pressure of the solvent and its solution respectively and `x_(1)` and `x_(2)` are the mole fraction of the solvent and solute respectively, then

A

`P=P^(@)N_(1)`

B

`P=P^(@)N_(2)`

C

`P^(@)=PN_(2)`

D

`P=P^(@)(N_(1)//N_(2))`

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The correct Answer is:

A

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