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A 5% solution of cane sugar (molecular w...

A `5%` solution of cane sugar (molecular weight =`342`) is isotonic with a `1%` solution of substance `X`. The molecular weight of `X` is

A

`34.2`

B

`171.2`

C

`68.4`

D

`136.8`

Text Solution

Verified by Experts

The correct Answer is:
C
`pi_(1)=pi_(2),(5)/(342)xx(1000)/(100)=(1)/(X)xx(1000)/(100)" "rArr" "X=68.4`
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