3. which of the following observations reflect colligative properties? ttifr 2016] )a0.5 m naci solution has a higher vapour pressure than a 0.5 m bach solution

3. Which of the following observations reflect colligative properties? TTIFR 2016] )A0.5 M NaCI solution has a higher vapour pressure than a 0.5 M BaCh solution. (I) A 0.5 M NaOH solution freezes at a lower temperature than pure water (II) Pure water freezes at a higher temperature than pure methanol. (b) I and II (a) I and II (C)II and II (d) I. II and II