Home › UP Board Class 12 › Solutions › Two solutions are said to be **isotonic** if they:
Two solutions are said to be **isotonic** if they:
AHave the same molality
BHave the same mole fraction of solute
CExert the same osmotic pressure at the same temperature
DHave the same vapour pressure
Answer & Solution
Correct answer: C. Exert the same osmotic pressure at the same temperature
Isotonic solutions are those that exert equal osmotic pressure at a given temperature; this implies equal molar concentration (and hence equal $iC$ if dissociation differs). Hypertonic and hypotonic refer to higher and lower osmotic pressure relative to a reference, respectively.
Related questions
The mass of NaOH (M = 40 g/mol) required to prepare 500 mL of a 0.20 M NaOH solution isWhich of these solutions will boil at the highest temperature at 1 atm?The molality of a 1 M aqueous NaCl solution (density = 1.04 g/mL, NaCl M = 58.5 g/mol) is Osmotic pressure π of a dilute solution obeys π = C R T. Here C representsVan't Hoff factor i > 1 for a solute indicatesA negative deviation from Raoult law is expected whenIf a solute dimerises in solution, its observed molar mass compared with the calculated vaWhich of the following is NOT a colligative property?