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General Princip...

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  • Question 1
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    The common metal present in german silver, bell metal and brass is :

  • Question 2
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     During extraction of metals, electrolytic refining is used to obtain pure metals. What is the electrolyte used?

  • Question 3
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    Which is not a mineral of aluminium?

  • Question 4
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    ASSERTION: $$CuFeS_{2}$$ is concentrated by froth floatation method.
    REASON: $$CuFeS_{2}$$ is the main ore of copper.

  • Question 5
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    Which of the following pair is incorrectly matched?

  • Question 6
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    In bessemer converter, oxides of manganese and silicon are removed as: 

  • Question 7
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    Which of the following gases is responsible for the flame at the mouth of Bessemer converter?

  • Question 8
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    When copper rod is dipped in $$CuSO_4$$ solution, the potential developed at the interface is called as __________ .

  • Question 9
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    Aluminium is used in thermite welding because:

  • Question 10
    1 / -0

    What is anode mud?

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