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General Princip...

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  • Question 1
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    All minerals are not the ore but all ores are minerals. The extraction of a particular metal depends upon several factors and overall it has to be convenient and economical.


    Which of the following statement is true?

  • Question 2
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    Find out C in the given flowchart:

  • Question 3
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    Which one of the following oxides is reduced by water gas to obtain the metal during its extraction?

  • Question 4
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    Which one of the following methods is used in the concentration of sulphide ore ?

  • Question 5
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    The principle behind froth floatation is:

  • Question 6
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    Concentration by froth floatation is applicable for which of the following ores?

  • Question 7
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    The zone refining process of metals is based on the principle of :

  • Question 8
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    From the Ellingham graphs on carbon, which of the following statements is false?

  • Question 9
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    ΔGo\Delta G^o versus T T plot in the Ellingham's diagram slopes downward for which of the reaction?

  • Question 10
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    The reducing agent in thermite process is:

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