Question

The freezing point of equimolal aqueous solutions will be the highest for:

• A. $C_6{H}_{5}N{H}_{3}Cl$
• B. $Ca(N{O}_3{)}_2$
• C. $La(N{O}_3{)}_3$
• D. $C_6{H}_{12}{O}_6\text{(glucose)}$

Answer 1

The correct option is D $C_6{H}_{12}{O}_6\text{(glucose)}$

If the number of particles is minimum, it will show minimum depression in freezing point. Here, $C_6{H}_{5}N{H}_{3}Cl$, $Ca(N{O}_3{)}_2$ and $La(N{O}_3{)}_3$ have more than or equal to two particles, but glucose doesn't dissociate so it shows minimum depression in freezing point.