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Two solutions each in 100 ml have 4 g gl...

Two solutions each in 100 ml have 4 g glucose and 10 g sucrose respectively. How much urea should be added to one of them in order to make them isotonic?

A

0.42 g urea in glucose solution

B

0.77 g urea in glucose solution

C

0.72 g urea in sucrose solution

D

0.42 g urea in sucrose solution

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A
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