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General Principle of Extraction of Metal Test - 3

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General Principle of Extraction of Metal Test - 3
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Weekly Quiz Competition
  • Question 1
    4 / -1

    A mineral is called ore if:

    Solution

    An ore is a type of rock that contains sufficient minerals with important elements including metals that can be economically extracted from the rock.

    A mineral is called ore when a metal can be profitably extracted from it.

     

  • Question 2
    4 / -1

    Which of the following gas is present in large quantity in atmosphere?

    Solution

    Atmosphere is the layer of gases surrounding the planet. The major gases present in atmosphere are nitrogen, oxygen, argon, carbon dioxide and other gases in minute quantity. Among all the gases present in atmosphere, nitrogen constitutes highest amount. Percentage of nitrogen present in atmosphere is 78.

     

  • Question 3
    4 / -1

    Which of the following statement is correct

    Solution

    Bauxite  Al2​O3​.2H2​O

     

  • Question 4
    4 / -1

    Carnallite is the mineral of:

    Solution

    Carnallite is an evaporite mineral a hydrated potassium magnesium chloride. It is variably colored yellow to white,reddish or blue. It occurs with a sequence of potassium and magnesium evaporite. It is an uncommon double chloride mineral that forms under specific conditions. It is an important source of potash.

     

  • Question 5
    4 / -1

    The salt which is least likely to be found in mineral is:

    Solution

    The salt which is least likely to be found in mineral is Nitrate. Nitrate is used mainly in Inorganic fertilizers.

     

  • Question 6
    4 / -1

    Which of the following ore is used for industrial extraction of aluminium in india

    Solution

    Though Corundum, Kaolin, Cryolite and Bauxite are ores of Aluminium. But Bauxite is used for industrial extraction of Aluminium in India because Bauxite is found in greater amount than Corundum and Kaolin.

     

  • Question 7
    4 / -1

    Bauxite is an oxide ore of

    Solution

    Bauxite is an oxide ore of Aluminium.

     

  • Question 8
    4 / -1

    Main ore of aluminium is:

    Solution

    Main ore of aluminium is Bauxite. Pure aluminium oxide is called Alumina.

     

  • Question 9
    4 / -1

    Copper can be extracted from:

    Solution

    Malachite (Cu(OH)2​.CuCO3​) is an important ore of copper. 

     

  • Question 10
    4 / -1

    Argentite is a mineral of:

    Solution

    Argentite is a silver sulfide mineral and is an important constituent of silver ore deposits. It contains around 87% silver.

     

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