Which of the following electrolytes will have maximum coagulating value for `Ag//Ag^(+)` sol?

Which of the following electrolytes will have maximum coagulating value for AgI//Ag^(+) sol ?

Which of the following electrolytes will have maximum coagulating value for AgI//Ag^(+) sol? a) Na_2S b) Na_3PO_4 c) Na_2SO_4 d) NaCl

Which of the following electrolytes will have maximum coagulating value for Agl//Ag^(+) sol -