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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
- 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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- What is the oxidation state of Cr in CrO5.
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- True of False : Lanthanide compounds are less basic than actinide comp...
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- Complete the missing links: In CrO4^(2-) ion, Cr is .......... hybridi...
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- Write the general electronic configuration of transition elements.
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- What is the most common oxidation state in the Lanthanoids ?
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- Mention all the oxidation states exhibited by chlorine in its compound...
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- The chromate ion in acidic medium changes to ............. ion.
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- The formula of chromite is .............. .
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- Transition elements
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