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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
- CrO3 is an acidic hydride of ............. .
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- Two lanthanoids ............. and ............. show +4 oxidation stat...
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- The formula of Prussion blue is ................ .
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- The actinoid used for manufacture of fine rods for atomic reactors is ...
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- The last element in the actinoid series is :
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- Choose the correct alternative: Cerium (Z = 58) exhibits +2/+4 oxidati...
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- True of False : Lanthanide compounds are less basic than actinide comp...
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- 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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