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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
- NO2^(-) is oxidised to N2/NO3^(-) by acidified KMnO4.
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- What happens when 95% of copper combine with 4% of tin and 1% of phosp...
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- Misch metal alloy contains about 95% lanthanoid/actinoid metals.
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- Baeyer's reagentisalkaline alkaline KMnO4/alkaline K2Cr2O7 solution.
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- Ionic radius of Ce^(3+)(Z = 58) is less/more than that of Yb^(3+) (Z =...
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- Number of unpaired electrons in gadolinium (Z = 64) is 8/6.
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- Colour of acidic K2Cr2O7 solution is orange / yellow .
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- Mn2O3 is acidic/basic oxide.
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- Pt^(4+) is less/more stable than Ni^(4+) .
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- Density of Mn is more/ less than Fe.
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- The number of unpaired electrons in Fe^(3+) ion is:
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- What is the number of unpaired electrons in : Cu^(+)?
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- Write two examples of mixed oxides and give their equivalent oxides.
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- Name the phenomenon responsible for the similar properties of Zr and H...
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- Which metal in the first series of transition metals exhibits +1 oxida...
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- Write the iupac name of following : [Co (H2NCH2CH2NH2)3 ]2(SO4)3
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- Write the general electronic configuration of f-block elements.
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- What is the most common oxidation state in the actinoids ?
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- What are lanthanoids ?
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- What are actinoids ?
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