CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320998
Select correct matching
1 Pyrometallurgy: Extraction of \(\mathrm{\mathrm{Fe}}\)
2 Electrometallurgy: Extraction of \({\text{ Al}}\)
3 Hydrometallurgy: Extraction of \(\mathrm{\mathrm{Au}}\)
4 All of the above are correct
Explanation:
Conceptual Questions
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320999
The process of the isolation of a metal by dissolving the ore in a suitable chemical reagent followed by precipitation of the metal by a more electropositive metal is called:
1 Hydrometallurgy
2 Electrometallurgy
3 Zone refining
4 Electro-refining
Explanation:
A hydrometallurgical process for the extraction of metals from ores, concentrates, or secondary materials essentially contains three basic steps-dissolution of the valuable metal in the aqueous solution (leaching) purification of leach solution and subsequent recovery of metal from the purified solutions either by electrolysis or by adding some electropositive metal to it.
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320998
Select correct matching
1 Pyrometallurgy: Extraction of \(\mathrm{\mathrm{Fe}}\)
2 Electrometallurgy: Extraction of \({\text{ Al}}\)
3 Hydrometallurgy: Extraction of \(\mathrm{\mathrm{Au}}\)
4 All of the above are correct
Explanation:
Conceptual Questions
CHXII06:GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS
320999
The process of the isolation of a metal by dissolving the ore in a suitable chemical reagent followed by precipitation of the metal by a more electropositive metal is called:
1 Hydrometallurgy
2 Electrometallurgy
3 Zone refining
4 Electro-refining
Explanation:
A hydrometallurgical process for the extraction of metals from ores, concentrates, or secondary materials essentially contains three basic steps-dissolution of the valuable metal in the aqueous solution (leaching) purification of leach solution and subsequent recovery of metal from the purified solutions either by electrolysis or by adding some electropositive metal to it.