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The relative lowering of vapour pressure...

The relative lowering of vapour pressure is equal to

A

Ratio of the number solute molecules to the totalnumber of molecules in solution

B

Ratio of the number of solvent molecules to the number of solute molecules

C

Ratio of the number of solute molecules to the number of solvent molecules

D

Ratio of the number of solvent molecules to the total number of molecules in solution

Text Solution

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The correct Answer is:
(a)
Relative lowering of vapour pressure,
`((P^(o)-P)/(P^(o)))=X`
=`(n_(2))/(n_(1)+n_(2))`
  i.e., ratio of number of moles of solute to total number of molecules in solution
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