Which of the following will have the highest freezing point at one atmosphere?
Which of the following will have the highest freezing point at one atmosphere?
The correct option is C 0.1M sugar solution
Now the lowering of the
freezing point is a colligative type of property. It depends on the number of
solute particles. With the increase of a number of particles, the freezing
point will decrease.
As the concentration of all solutions is the same, for a
fixed amount of these solutions the number of solute molecules should be the
same. But ionic compounds as NaCl, BaCl2 and FeCl3 are dissociated in
the aqueous medium.
Also, each such form will have 2,3 and 4 particles
respectively. But sugar means glucose molecule will not get dissociated or
ionized. As FeCl3 solution contains the maximum number of particles, its
freezing point will be lowest and glucose solution contains a minimum number of
solute particles. So, the freezing point of sugar will be the highest.
The correct option is B.
Now the lowering of the freezing point is a colligative type of property. It depends on the number of solute particles. With the increase of a number of particles, the freezing point will decrease.
As the concentration of all solutions is the same, for a fixed amount of these solutions the number of solute molecules should be the same. But ionic compounds as NaCl, BaCl2 and FeCl3 are dissociated in the aqueous medium.
Also, each such form will have 2,3 and 4 particles respectively. But sugar means glucose molecule will not get dissociated or ionized. As FeCl3 solution contains the maximum number of particles, its freezing point will be lowest and glucose solution contains a minimum number of solute particles. So, the freezing point of sugar will be the highest.
The correct option is B.
