Question

Which of the following statements is false? [NCERT Exemplar]
(а) Two different solutions of sucrose of same molality prepared in different solvents will have the same depression in freezing point.
(b) The osmotic pressure of a solution is given by the equation π = CRT (where C is the molarity of the solution).
(c) Decreasing order of osmotic pressure for 0.01 M aqueous solutions of barium chloride, potassium chloride, acetic acid and sucrose is
BaCl2 > KCl > CH3COOH > sucrose.
(d) According to Raoult’s law, the vapour pressure exerted by a volatile component of a solution is directly proportional to its mole fraction in the solution.

Answer 1

Answer:

Depression in freezing depends on concentration (molarity) of solution and also on solvent taken.

ΔT =(K f)× molarity

↘ depends on solvent taken

So, option (A) is a wrong statement

Explanation:

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