If a centimolal aqueous solution of $K_{3}[Fe(CN)_{6}]$ has a degree of dissociation of $0.78$,what is the value of the van't Hoff factor?

For a dilute aqueous solution of glucose,the van't Hoff factor $(i)$ is:

Which of the following solutions has the lowest freezing point?

$A$ $0.01 \ M$ solution of $KCl$ and $BaCl_2$ is prepared in water. If the freezing point of the $KCl$ solution is $-2 \ ^\circ C$,what will be the freezing point of the $BaCl_2$ solution,assuming complete ionization?

The freezing point depression of a $0.01 \ m$ aqueous solution of $[Pt(NH_3)_4Cl_4]$ is $0.0054^\circ C$. If $K_f$ for water is $1.80 \ K \ kg \ mol^{-1}$,what is the correct formula for the complex?

$pH$ of a $0.1 \ M$ monobasic acid is found to be $2$. Hence its osmotic pressure at a given temperature $T \ K$ is (in $RT$)