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General Princip...

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  • Question 1
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    A solution is a homogeneous mixture of two or more substances. Which of the following is a solution?

  • Question 2
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    The most common ore of iron is ___________.

  • Question 3
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    The transition element used for making calorimeters is:

  • Question 4
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    Among $$K, Mg, Au$$ and $$Cu$$, the one which is extracted by heating its ore in air is:

  • Question 5
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    Stainless steel contains:

  • Question 6
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    Purification of aluminium by electrolytic refining is called:

  • Question 7
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    Bauxite, the ore of aluminium, is purified by which process?

  • Question 8
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    The ore that can be concentrated by magnetic separation method is:

  • Question 9
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    Which of the following is the ore of $$Cu$$?

  • Question 10
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    Which of the following factors is of no significance for roasting sulphide ores to the oxides and not subjecting the sulphide ores to carbon reduction directly?

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