1.

The concentration in g//L of a solution of cane sugar (Molecular weight = 342) which is isotonic with a solution containing 6 g of urea (Molecular weight = 60) per litre is

Answer»

`3.42`
`34.2`
`5.7`
19

Solution :ISOTONIC solution `=(w_(1))/(m_(1)V_(1))=(w_(2))/(m_(2)V_(2))`
`=(w_(1))/(342xx1)=(6)/(60xx1)=(342xx6)/(60)=34.2`.


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