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d and f-Block Elements Test - 2
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  • Question 1/7
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    In the dichromate dianion:

  • Question 2/7
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    The catalytic activity of transition elements and their compounds is ascribed to:

  • Question 3/7
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    The basic character of the transition metal monoxides follows the order (Atomic no Ti

    = 22, V = 23,

    Cr = 24, Fe = 26):

  • Question 4/7
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    CrO3  dissolves in aqueou s NaOH to give :

  • Question 5/7
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    Addition of high proportions of manganese makes steel useful in making rails of rail roads, because manganese

  • Question 6/7
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    The anodic mud obtained during electro refining of Cu contains

  • Question 7/7
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    Zn

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