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The d- and f- B...

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  • Question 1
    1 / -0

    A complex $${\left[ {M{F_6}} \right]^{ - x}}$$ has magnetic moment of 4.91 B.M. whereas $${\left[ {M{{(CN)}_6}} \right]^{ - x}}$$ has zero magnetic moment, metal ion can be :

  • Question 2
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    The ions from among the following which are colourless are 

    (i) $$Ti^{4+}$$   (ii) $$Cu^{+}$$   (iii) $$Co^{3+}$$    (iv) $$Fe^{2+}$$

  • Question 3
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    Actinoids comprises of elements from:

  • Question 4
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    The chemical similarity between boron and silicon mainly due to equal value of their:

  • Question 5
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    Beryllium resembles Aluminium in properties. This is mainly due to:

  • Question 6
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    If the IP of hydrogen in its ground state is 2.18 x$$10^{-18}$$ J/atom, then the electron affinity of $$Li^{3+}$$ ion is :

  • Question 7
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    If the seventh period is completed, the atomic number of the last element would be:

  • Question 8
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    The element with $$Z = 106$$ belongs to :

  • Question 9
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    Most of the radio active elements are present in:

  • Question 10
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    The element californium belongs to a family of :

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