Froth floatation process used for the concentration of sulphide ore :
CHEMISTRY · Single correct · CBSE · Chemistry · Metals and Non-metals · Metals and Non-metals
Problem
Froth floatation process used for the concentration of sulphide ore :
(1) is based on the difference in wettability of different minerals
(2) uses sodium ethyl xanthate, C2H5OCS2Na as collector
(3) uses NaCN as depressant in the mixture of ZnS and PbS when ZnS forms soluble complex and PbS forms froth
(4) All are correct statements