In the extraction of gold ,alluival s...

In the extraction of gold ,alluival sand is conectrated by which method

Gavity separation

Frouth floation

magnetic separation

Liquation

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AAKASH SERIES-PRINCIPLES OF METALLURGY-OBJECTIVE EXERCISE-1

Gravity separation process may be used for the concentration of
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Wolframite (FeWO(4)) is separated from cassiterite by
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In the extraction of gold ,alluival sand is conectrated by whic...
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Which one of the following is used as conditioner in froth flotation p...
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During extraction of a metal the ore is roasted if it is a
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A common metal that is used for the extraction of some metals from the...
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Extraction of metals from sulphide cres is done by
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To remove basic impurities from the ore the substance generally used i...
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During smelting an additional substance added to form a fusible pro...
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Calcination is the process of heating the ore :
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To which of the following ores, calcination process in not applicable
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Roasting is carried out in case of
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Smelting is usually carried out in
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Slag is a product of
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In oxidisin roasting of Zn, S porducts are
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Ag(2)S or in mixed with NaCl and heated to 6000^(@) in the presence o...
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For which one the following reaction Delta S is positive
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For which one of the followinng reaction Delta G decreases with ...
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For which one of the following reaction , the graph of Delta ...
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The least stable oxide at room temperature is
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