What is the concentration (in $g/L$) of a sugar solution $(mol. wt. = 342 \, g/mol)$ that is isotonic with a $6 \, g/L$ urea solution $(mol. wt. = 60 \, g/mol)$?

The concentration in $g$ per litre of a solution of cane sugar $(M = 342)$ which is isotonic with a solution containing $6 \ g$ of urea $(M = 60)$ per litre is

The solution in which the blood cells retain their normal form is with regard to the blood:

$A$ solution of a non-electrolyte substance containing $1.05 \ g$ per $100 \ mL$ was found to be isotonic with a $3\%$ glucose solution. The molecular mass of the substance is:

Assume a living cell with $0.9 \% (\omega / \omega)$ of glucose solution (aqueous). This cell is immersed in another solution having equal mole fraction of glucose and water. (Consider the data up to the first decimal place only). The cell will :

Which of the following will have the minimum osmotic pressure?