A sulphide ore is first converted into its oxide before reduction
CHEMISTRY · Single correct · CBSE · Chemistry · Metals and Non-metals · Metals and Non-metals
Problem
A sulphide ore is first converted into its oxide before reduction. This is done because :
(1) a sulphide ore cannot be reduced to metal at all
(2) no reducing agent is found suitable for reducing a sulphide ore
(3) the enthalpy of formation of CO2 is more than that of CS2
(4) a metal oxide is generally less stable than the metal sulphide