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

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

Which one of the following aqueous solutions will exhibit the highest boiling point?

Colligative properties are used for the determination of:

Which of the following has the highest boiling point?