(when concentration of different solution is equal)
\(Al_2(SO_4)_3\) provides five ions on ionisation
\(Al_2(SO_4)_3\to 2Al^{3+}\,+\,3SO^{2-}_4\)
while \(KCl\) provides two ions
\(KCl\to K^++Cl^-\)
\(C_6H_{12}O_6\) and \(C_{12}H_{22}O_{11}\) are not ionised so they have single particle in solution.
Hence, \(Al_2(SO_4)_3\) have maximum value of depression in freezing point or lowest freezing point.
[આણ્વીય દળ ${Cu}: 63.54\, {u}, {S}: 32\, {u}, {O}: 16 \,{u}, {H}: 1\, {u}]$
($H _{2} CO _{3}$ નો પ્રથમ વિયોજન અચળાંક =$4.0 \times 10^{-7}$$\log 2=0.3 ;$ હળવા પીણાં ની ઘનતા $=1\, g\, mL ^{-1})$