Occurance and Extraction of Metals — Practice Quiz
Telangana Open School (TOSS) · Class 12 · Chemistry
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Quick Quiz: Occurance and Extraction of Metals
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Which of the following is a noble metal that occurs in the native state?
What is the naturally occurring substance in which a metal is found called?
Which of the following is an oxide ore of iron?
Which metal is extracted from bauxite?
Sample Questions
What is the rocky impurity present in an ore called?
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Gangue,Matrix
Gangue or matrix refers to the unwanted rocky impurities in an ore.
Which of the following is a sulphide ore?
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Galena
Galena (PbS) is a sulphide ore of lead.
Which process is used to remove gangue from powdered ore?
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Concentration
Concentration or dressing of the ore removes gangue from powdered ore.
Gravity separation is used for which type of ores?
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Oxide ores
Gravity separation is used for heavier oxide ores like haematite and tinstone.
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