Question

Statement 1: For calculating the molality or the mole fraction of solute, if the molarity is known, it is necessary to know the density of the solution
Statement 2 : Molality, molarity and the mole fraction of solute can be calculated from the weight percentage and the density of the solution.

• A. If both Statement $1$ and Statement $2$ are true and the statement $2$ is the correct explanation of the statement $1$
• B. If both Statement $1$ and Statement $2$ are true but statement $2$ is not the correct explanation of the statement $1$
• C. If Statement $1$ is true but Statement $2$ is false
• D. If Statement $1$ is false but Statement $2$ is true

Answer 1

Answer: (B)

Molality and mole fraction are mass dependent terms while molarity is volume dependent term.