Questions in solutions

Select	Question
	Which of the following aqueous solutions produce the same osmotic pressure
	In the depression of freezing point experiment, it is found that the
	Which of the following aqueous soltuon are isotonic ($R=0.082\ atm\ {{K}^{-1}}\ mo{{l}^{-1}}$)
	What does not change on changing temperature
	Which is / are correct statement(s)
	Consider following solutions :I. $1\,M\,aq.$glucose II. $1\,M\,aq.$ sodium chloride III. $1\,M$benzoic acid in benzene IV. $1\,M$ammonium phosphateSelect correct statement(s):
	In the depression of freezing point experiment, it is found that the
	Van’t Hoff factor can be expressed as
	Toluene and benzene form an ideal solution over the whole range of composition. Two different solutions are made, solution I is one molar and solution II is one molal with respect to toluene. Assume both solutions to have same density ($0.08\,g/ml$), then
	At 35°C, the vapour pressure of $C{{S}_{2}}$is 512 mm Hg, and acetone is 344 mm Hg. A solution of $C{{S}_{2}}$and acetone in, which the mol fraction of $C{{S}_{2}}$is 0.25, has a total vapour pressure of 600 mm Hg. Which of the following statements is/are correct