Freezing point

hey since the molalities are same the molecular weights of the substances matter.
i think the answer is KCl one.

is the answer (b)??????????????

No sorry....Its given as d. I dont know how..do u have any idea?

1)glucose : no dissociation
2)KCl : dissociation into 2 particles
3)BaCl₂ : dissociation into 3 particles
4)K₄[Fe(CN)₆] : dissociation into 5 particles

i (vant Hoff factor) of K₄[Fe(CN)₆] is max.
(Since molality is also same) Hence max. depression in freezing pt.
Hence lowest freezing pt.

yah correct. rkrish.

i dont think it has any thing to do with mol.wt.

thank you[1]

Answer is glucose C6H12O6

Because decrease in freezing point is colligative property so it doesn't depend on nature of solution