Ncert Exercises & Solutions

The van't Hoff factor (i) is given by the expression:

(a) $i = \frac{Normal molar mass}{Abnormal molar mass}$

(b) $i = \frac{Abnormal molar mass}{Normal molar mass}$

(c) $i = \frac{Observed colligative property}{Calculated colligative property}$

(d) $i = \frac{Calculated colligative property}{Observed colligative property}$

The correct choice among the given options is:

1.	a and b	2.	b and c
3.	c and d	4.	a and c

Hint: Van't Hoff factor

(i) = \frac{normal molar mass}{abnormal molar mass}