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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_s = P _On_1`

B

`P_s = P_On_2`

C

`P_0 = P_sn_2`

D

`P_s = P_0(n_1)/( n_2+n_1)`

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The correct Answer is:
A
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