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D and F Block E...

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  • Question 1
    4 / -1

    The reason for the stability of Gd3+ ion is

  • Question 2
    4 / -1

    The black compound formed during the reaction between sodium thiosulphate and silver nitrate is

  • Question 3
    4 / -1

    Zn gives H2 gas with H2SO4 and HCl but not with HNO3 because

  • Question 4
    4 / -1

  • Question 5
    4 / -1

    Colourless solutions of the following four salts are placed separately in four different test tubes and a strip of copper is dipped in each one of these, which solution will turn blue ?

  • Question 6
    4 / -1

    General electronic configuration of lanthanides is

  • Question 7
    4 / -1

    An atom has electronic configuration1s2 2s2 2p6 3s2 3p6 3d3 4s2 . In which group would it be placed?

  • Question 8
    4 / -1

    In acidic medium, KMnO4 oxidises FeSO4 solution. Which of the following statement is correct?

  • Question 9
    4 / -1

    Arrange Ce3+, La3+ Pm3+ and Yb3+ increasing order of their ionic radii

  • Question 10
    4 / -1

    Which of the following reaction is possible at anode ?

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