Which of the following can pass through a semi-permeable membrane?

The osmotic pressure of equimolar solutions of $BaCl_2$,$NaCl$,and glucose follows the order:

$A$ solution containing $10 \ g/L$ of urea is isotonic with a $5\%$ solution of a non-electrolyte solute. The molecular mass of the non-electrolyte solute is ..... $g/mol$.

Correct order of osmotic pressure of the following solutions is
$(i)$ $30 \ g \ L^{-1}$ of glucose
$(ii)$ $60 \ g \ L^{-1}$ of $NH_2CONH_2$
$(iii)$ $80 \ g \ L^{-1}$ of glucose
$(iv)$ $58.5 \ g \ L^{-1}$ of $NaCl$

$A$ solution containing $10 \ g$ of urea (molar mass $= 60 \ g \ mol^{-1}$) per liter is isotonic with a $5 \% \ w/v$ solution of a non-volatile solute. The molar mass of the non-volatile solute is ......... $g \ mol^{-1}$.

Calculate the osmotic pressure of $0.03 \ mol$ of non-electrolyte solute dissolved in $0.1 \ dm^3$ of water at $300 \ K \ [R=0.0821 \ dm^3 \ atm \ mol^{-1} \ K^{-1}]$ (in $atm$)