The concentration of glucose (in g/litre) solution which is isotonic with a solution of urea containing 6 g per litre will be :

Options

A. 6
B. 34.2
C. 18
D. 1.8

Answer

C

Explanation

For two non-electrolytic solution `C_(1) = C_(2)`
`W_(1)/(M_(1) xx 1)=W_(2)/(M_(2) xx 1 ) `
`:. 6/(60 xx 1) = W_(2)/(180 xx 1 ) :. W_(2) = (180 xx 6)/60 =18`