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    Only One Option Correct Type

    This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct

    Q.

    Which represents the correct abundance order of elements in the earth crust?

  • Question 2
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    Which of the following contains both copper and iron?

  • Question 3
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    Regarding cryolite incorrect statement is

  • Question 4
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    In chromite ore, the oxidation number iron and chromium are respectively ______.

  • Question 5
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    Sulphide ores are common for metals

  • Question 6
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    Oxidation states of the metal in the minerals haematite and magnetite respectively are

  • Question 7
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    Among the following statements the incorrect one is

  • Question 8
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    A mineral is called an ore if

  • Question 9
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    Which is incorrect match?

  • Question 10
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    The molecular formula of Glauber 's salt is:

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