1.

10 litre solution of urea contains 240g urea. The active mass of urea will be

Answer»

`0.04`
`0.02`
`0.4`
`0.2`

Solution :`because` 10 litre of UREA solution contains 240 GM of urea
`therefore` ACTIVE MASS `=(240)/(60XX10)=0.4`.


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