Equal mass of a solute are dissolved in equal mass of two solvents A and B and formed very dilute solution. The relative lowering of vapour pressure for the solution B has twice the relative lowering of vapour pressure for the solution A. If `m_(A) "and" M_(B)` are the molecular mass of solventds A and B respectively, then :
A
`M_(A) =M_(B)`
B
`M_(B) =2xxM_(A)`
C
`M_(A) =4M_(B)`
D
`M_(A) =2M_(B)`
Text Solution
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The correct Answer is:
b
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