Question

Statement 1: Ebullioscopy or cryoscopy cannot be used for the determination of molar mass of polymers
Statement 2: High molar mass solute leads to very low value of $\Delta\,T_{b}$ or $\Delta\,T_{f}$

• A. If both Statement 1 and Statement 2 are true and the statement 2 is the correct explanation of the statement 1
• B. Ifboth 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: (A)

If molar mass is low, $\Delta\,T_{b}$ or $\Delta\,T_{f}$ { being low cannot be read out accurately. A little error in measurement of $\Delta\,T_{b}$ will cause abnormal values of mol. wt