Occurrence Of Metals
2 previous year questions.
High-Yield Trend
Chapter Questions 2 MCQs
A mixture of PbS and PbO undergoes self-reduction to produce Pb and SO2.
In the extraction process of copper from copper pyrites, silica is added to produce copper silicate.
Partial oxidation of sulphide ore of copper by roasting, followed by self-reduction produces blister copper.
In the cyanide process, zinc powder is utilized to precipitate gold from Na[Au(CN)2].
The correct statement(s) related to processes involved in the extraction of metals is(are)
Roasting of Malachite produces Cuprite.
Calcination of Calamine produces Zincite
Copper pyrites is heated with silica in a reverberatory furnace to remove iron.
Impure silver is treated with aqueous KCN in the presence of oxygen followed by reduction with zinc metal.
About Occurrence Of Metals - JEE-ADVANCED
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