Which of the following is used for the seperation of ZnS and PbS during the froth floatation process ?

Which of the following is used for the seperation of ZnS and PbS durin

1.	Which of the following is used for the seperation of ZnS and PbS during the froth floatation process ?
Answer» KCl KCl `NH_(4)NO_3` NONE of these. Answer :(B)