Question

Which one of the following statements is FALSE?

• A. Raoult’s law states that the vapour pressure of a component over a solution is proportional to its mole fraction in solution.
• B. The osmotic pressure $\left(\right.\pi \left.\right)$ of a solution is given by the equation $\pi =iCRT$ where M is the molarity of the solution.
• C. The correct order of osmotic pressure for $0.01M$ aqueous solution of each compound is $BaCl_{2}>KCl>CH_{3}COOH>sucrose$ .
• D. none of of these

Answer 1

Answer: (D)

Raoult’s law states that the vapour pressure of a component over a solution is proportional to its mole fraction in solution.
The osmotic pressure ( π ) of a solution is given by the equation π = iCRT where M is the molarity of the solution.
The correct order of osmotic pressure for 0.01 M aqueous solution of each compound is BaCl₂ > KCl >CH₃COOH > sucrose.