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If P0 and Pdelta are the vapour pressure...

If `P_0` and `P_delta` are the vapour pressure of solvent and solution respectively and `N_1` and `N_2` are the mole of solute and solvent then:

A

(P_(0)- P_(8))/P_(0) = N_(1)/(N_(1) + N_(2))

B

(P_(0)-P_(8))/p_(S) = (N_(1)/N_(2))

C

P_(S) = P_(0) . N_(2)/(N_(1)+N_(2))

D

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The correct Answer is:
D
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