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29. A solution containing 10g per

dm³of urea (molecular mass = 60 gmol^-1 ) is isotonic with a 5% solution of a non volatile solute. The molecular mass of this non volatile solute is

a. 300 g mol ^-1

b. 350 g mol ^-1

c. 200 g mol ^-1

d. 250 g mol ^-1

Ans. a

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