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What happens when 95% of copper combine ...

What happens when 95% of copper combine with 4% of tin and 1% of phosphorus?

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. True of False : Lanthanide compounds are less basic than actinide comp...

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  2. NO2^(-) is oxidised to N2/NO3^(-) by acidified KMnO4.

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  3. What happens when 95% of copper combine with 4% of tin and 1% of phosp...

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  4. Misch metal alloy contains about 95% lanthanoid/actinoid metals.

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  5. Baeyer's reagentisalkaline alkaline KMnO4/alkaline K2Cr2O7 solution.

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  6. Ionic radius of Ce^(3+)(Z = 58) is less/more than that of Yb^(3+) (Z =...

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  7. Number of unpaired electrons in gadolinium (Z = 64) is 8/6.

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  8. Colour of acidic K2Cr2O7 solution is orange / yellow .

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  9. Mn2O3 is acidic/basic oxide.

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  10. Pt^(4+) is less/more stable than Ni^(4+) .

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  11. Density of Mn is more/ less than Fe.

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  12. The number of unpaired electrons in Fe^(3+) ion is:

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  13. What is the number of unpaired electrons in : Cu^(+)?

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  14. Write two examples of mixed oxides and give their equivalent oxides.

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  15. Name the phenomenon responsible for the similar properties of Zr and H...

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  16. Which metal in the first series of transition metals exhibits +1 oxida...

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  17. Write the iupac name of following : [Co (H2NCH2CH2NH2)3 ]2(SO4)3

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  18. Write the general electronic configuration of f-block elements.

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  19. What is the most common oxidation state in the actinoids ?

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  20. What are lanthanoids ?

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