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d and f-Block Elements Test - 4
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  • Question 1/8
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    The equivalent weight of MnSO4 is ___ of its molecular weight when it is converted to MnO2.

  • Question 2/8
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    Given below are some points of comparison between actinoids and lanthanoids. Choose the incorrect statements from among them.

    a. Actinoids show greater number of oxidation states than lanthanoids.
    b. The chemistry of actinoids elements is not so smooth as that of lanthanoids.
    c. Most of the cations of actinoids and lanthanoids are coloured.

  • Question 3/8
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    Which of following is used in the preparation of the optical glass of the camera having a high refractive index?

  • Question 4/8
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    Directions For Questions

    The following question has four choices, out of which ONLY ONE is correct.

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    The correct order of ionic radii of Yb3+, La3+, Eu3+ and Lu3+ is:

  • Question 5/8
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    In which of the following pairs of elements, does the element with the higher atomic number have a lower ionization energy as compared to the preceding element?

  • Question 6/8
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    Directions For Questions

    The following question has four choices, out of which ONLY ONE is correct.

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    For Cr, the oxidation states (+ 2), (+ 3) and (+ 4) are well known, but the most stable oxidation state amongst these is

  • Question 7/8
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    The values of the reduction potentials of Cr3+ and Mn3+ are -0.41V and +1.51V, respectively. Choose the option that is inferred from the given factual information?

  • Question 8/8
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    H2O2 gives blue colour on treatment with acidified solution of potassium dichromate. This is due to the formation of

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