MCQ
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
- A$(i),\,(ii)$ and $(iii)$
- B$(i)$ and $(ii)$
- C$(ii)$ and $(iii)$
- ✓$(i)$ and $(iii)$
