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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
- The shape of sulphate ion is
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- In chromyl chloride test orange red vapours are obtained. These are du...
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- Why is La(OH)3 more basic than Lu(OH)3 ?
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- What is the most common oxidation state in the Lanthanoids ?
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- How many unpaired electrons are present in Gd(Z = 64) ?
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- Name the actinoid used for the manufacture of fine rods for atomic rea...
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- Arrange Ce^(3+) (Z = 58), Sm^(3+) (Z = 62) and Yb^(3+)(Z = 70) in decr...
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- Name the basic cause of similar atomic radii of Hf and Zr.
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- Does actinoids show actinoid contraction similar to lanthanoid contrac...
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- Name the trivalent lanthanoid having the configuration [Xe] 4f^7.
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- Which of the following ion is colourless ? U^(3+), Cm^(4+), Th^(4+)
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- Write the number of unpaired electrons in Pr ^(4+)
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- True of False : Mn2O7 is a basic oxide.
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- Write reactions of KMnO4, in neutral medium with : MnSO4
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- Why are Ni^(2+) compounds thermodynamically more stable than Pt^(2+)...
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- True of False : Both La^(3+) and Lu^(3+) are diamagnetic.
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- True of False : The number of unpaired electrons in V^(2+) is 2
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- Explain the structure of Cr2O7^(2-)
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- Ti^(3+) compounds appear purple. Why?
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- Complete the following statement- Carrot, Spinach, tomato, red bell pe...
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