The process which involves the treatment of the ore with a suitable reagent so as to make it soluble but not the impurities is called:

  • A
    Froth floatation
  • B
    Roasting
  • C
    Hydrometallurgy
  • D
    Leaching

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Similar Questions

Which of the ores mentioned in the table can be concentrated by the magnetic separation method?
Metal Ores and Composition
$Aluminium$ $Bauxite: AlO_{x}(OH)_{3-2x} (0 < x < 1)$; $Kaolinite: [Al_{2}(OH)_{4}Si_{2}O_{5}]$
$Iron$ $Haematite: Fe_{2}O_{3}$; $Magnetite: Fe_{3}O_{4}$; $Siderite: FeCO_{3}$; $Iron pyrites: FeS_{2}$
$Copper$ $Copper pyrites: CuFeS_{2}$; $Malachite: CuCO_{3} \cdot Cu(OH)_{2}$; $Cuprite: Cu_{2}O$; $Copper glance: Cu_{2}S$
$Zinc$ $Zinc blende or Sphalerite: ZnS$; $Calamine: ZnCO_{3}$; $Zincite: ZnO$

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Which of the following is used as a stabilizer during the concentration of sulphide ores?

Bauxite containing impurities of iron oxide is purified by

In the froth floatation process for the purification of ores,the ore particles float because

While extracting an element from its ore,the ore is ground and leached with dilute $KCN$ solution to form the soluble product potassium argentocyanide. The element is

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