5 Questions
Metals occur in nature sometimes free but mostly in ______ state
combined
Most of the metals are found in the form of ______ in nature
compounds
Ores are those minerals from which metals can be obtained ______ and profitably
economically
The unwanted rocky, earthy or sandy materials almost always associated with ores as impurities are called ______ or matrix
gangue
The chemistry of extracting metals from their ores is ______
metallurgy
Test your knowledge on the general principles and processes of isolating elements with this quiz. Learn about the methods of extraction, including concentration, oxidation, reduction, electrolytic methods, and refining. Explore the occurrence and extraction principles of aluminium, copper, zinc, and iron.
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