The values of Van’t Hoff factors for KCl, NaCl and K2SO4, respectively, are _____________.
The van’t Hoff factor is:
i = Total number of ions after dissociation/association/Total number of ions before dissociation/association.
Thus, for KCl, van’t Hoff factor = 2,
for NaCl van’t Hoff factor is 2 and
for K2SO4 van’t Hoff factor is 3.
Thus, Option 2 is the correct answer.