At 300 K, 0.15 M Fructose solution is isotonic with 0.1 M KCl solution. Percentage of dissociation of KCl in the solution is

For isotonic solutioni1M1Fructose=i2M2KCl          10.15M=i20.1M i2KCl=0.150.1=1.5 KCl1-α⇋K+α+Cl-α i = 1-α+α+α=1+α 1+α=1.5       α=0.5 ;