Which of the following solutions boils at the highest temperature?

Which of the following is not a colligative property?

Which observation$(s)$ reflect$(s)$ colligative properties?
$(i)$ $A$ $0.5 \ m$ $NaBr$ solution has a higher vapour pressure than a $0.5 \ m$ $BaCl_2$ solution at the same temperature
$(ii)$ Pure water freezes at the higher temperature than pure methanol
$(iii)$ $A$ $0.1 \ m$ $NaOH$ solution freezes at a lower temperature than pure water
Choose the correct answer from the codes given below

Consider $0.1 \ M$ solutions of two solutes $X$ and $Y$. The solute $X$ behaves as a univalent electrolyte while the solute $Y$ dimerises in solution. Which of the following statements are correct regarding these solutions?
$(a)$ The boiling point of the solution of $X$ will be higher than that of $Y$
$(b)$ The osmotic pressure of the solution of $X$ will be higher than that of $Y$
$(c)$ The freezing point of the solution of $X$ will be lower than that of $Y$
$(d)$ The relative lowering of vapour pressure of both the solutions will be the same
Select the correct answer from the given options $:-$

Match the items given in Column-$I$ (method used for determining colligative property) and Column-$II$ (the corresponding colligative property) and find the correct order.

Column-$I$	Column-$II$
$A$. Beckmann method	$1$. Osmotic pressure
$B$. Ostwald-Walker method	$2$. Elevation in $B$.$P$.
$C$. Berkeley-Hartley method	$3$. Depression in $F$.$P$.
$D$. Landsberger method	$4$. Relative lowering of vapour pressure

Which of the following is $NOT$ a colligative property?