Dr. H.C. Srivastava and SUMEDHA SRIVASTAVA Solutions for Chapter: Solutions, Exercise 6: TRUE OR FALSE TYPE QUESTIONS

$0.91\%$ solution of pure sodium chloride is isotonic with human RBC's.

When a substance associates in solution, a higher value of a colligative property is obtained.

When a substance dissociates in solution, the observed molecular mass is higher than the normal molecular mass.

When the molecular state of a solute remains unchanged in the solution, $\mathrm{i}=1$.

The depression of freezing point of $0.1 \mathrm{M}$ aqueous solutions of $\mathrm{HCl}, {\mathrm{CuSO}}_4 \mathrm{and} {\mathrm{Na}}_2{\mathrm{SO}}_4$ are in the ratio of $1 : 1 : 1.5$.

The van't Hoff factor for a dilute aqueous solution of glucose is less than one.

The molecular mass of acetic acid (dissolved in benzene) as determined by cryoscopic method is almost double of the normal value.

The osmotic pressure of $0.1 \mathrm{M} \mathrm{KCl}$ solution will always be higher than that of $0.1 \mathrm{M}$urea solution provided the temperature of the two solutions is the same.