van't Hoff factor for aqueous Na2SO4 solution with degree of ionisation α = 0.75, is

Q. The van't Hoff factor of $0.005M$ aqueous solution of $KCl$ is $1.95$. The degree of ionisation of $KCl$ is:

Q. What is van't Hoff factor of aqueous phosphate solution? (assume 100% ionise).

Q. $K_{2}Hg{I}_4$ is $40\%$ ionised in aqueous solution. The value of its van't Hoff factor (i) is:

Q. Assuming 25% ionisation in aqueous solution, what will be the van't Hoff factor for $NaCl$ ?

Q. The ratio of van't Hoff factor for three different aqueous solutions of $KCl,CuS{O}_{4}andCa{F}_2$ respectively is:
Assume 100% ionisation