Question
Chemistry Question on Occurrence Of Metals
The correct statement(s) related to processes involved in the extraction of metals is(are)
A
Roasting of Malachite produces Cuprite.
B
Calcination of Calamine produces Zincite
C
Copper pyrites is heated with silica in a reverberatory furnace to remove iron.
D
Impure silver is treated with aqueous KCN in the presence of oxygen followed by reduction with zinc metal.
Answer
Calcination of Calamine produces Zincite
Explanation
Solution
