MCQ
Which of the following has minimum freezing point
  • A
    $0.1\,M$ ${K_2}C{r_2}{O_7}$
  • B
    $0.1 \,M$  $N{H_4}Cl$
  • C
    $0.1\,M $ $BaS{O_4}$
  • $0.1\,M $ $A{l_2}{(S{O_4})_3}$

Answer

Correct option: D.
$0.1\,M $ $A{l_2}{(S{O_4})_3}$
d
(d) We know that lowering of freezing point is a colligative property which is directly proportional to the number of particles formed by one mole of compound therefore $0.1\,M$  $A{l_2}{(S{O_4})_3}$ solution will have minimum freezing point.

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