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12th Standard English Medium Chemistry Subject Transition and Inner Transition Elements Creative 1 Mark Questions with Solution Part - I

12th Standard

    Reg.No. :
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Chemistry

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5
  1. The highest possible oxidation state shown by osmium in its compound is_______.

    (a)

    +4

    (b)

    +6

    (c)

    +8

    (d)

    +10

  2. The trend in ionisation enthalpy of a transition element is not regular because,_______.

    (a)

    removal of one electron alters the relative energies of 4s and 3d orbitals

    (b)

    due to different electronic configuration (stability)

    (c)

    Poor screening of 3p-orbital

    (d)

    due to decrease in effective nuclear charge

  3. Which one of the following exhibits highest oxidation state?

    (a)

    Ni

    (b)

    Mn

    (c)

    V

    (d)

    Zr

  4. Which of the following is coloured due to charge transfer?

    (a)

    MnO4-

    (b)

    CrO42-

    (c)

    Cu2O

    (d)

    All of these

  5. What are the species X and Y in the following?

    (a)

    CrO3, CrO42-

    (b)

    CrO3, Cr2O3

    (c)

    CrO4-2, Cr2O72-

    (d)

    H2CrO4, H2Cr2O7

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