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

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By Expert Faculty of Sri Chaitanya
a
342
b
171.12
c
68.4
d
136.8

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detailed solution

Correct option is C

Isotonic solutions: Same osmotic pressure (i.e., same Ceffective and assume c≈m)5x1000342x100=1x1000m.wtx100 =68.4


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