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d and f-Block Elements Test - 18
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  • Question 1/10
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    Which of the following group contain mostly radioactive elements ?

  • Question 2/10
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     Mischmetal is an alloy of:

    • Question 3/10
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      What is the most common oxidation state for actinoids?

    • Question 4/10
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      The electronic configuration of Eu 3+ ion is:

    • Question 5/10
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      A member of the lanthanoid series which is well known to exhibit +4 oxidation state is:

    • Question 6/10
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      How many elements belong to lanthanide series?

    • Question 7/10
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       In which of the following oxidation states La achieve the noble gas configuration?

    • Question 8/10
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       Which of the following statement is true?

    • Question 9/10
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       The common oxidation state of the elements of lanthanoids series is:

    • Question 10/10
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      In which of the following oxidation state Cerium achieves the noble gas configuration?

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