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Out of Fe^(2+) and Fe^(3+) which is mo...

Out of `Fe^(2+)` and `Fe^(3+)` which is more paramagnetic and why?

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`Fe^(3+)` , because it has more unpaired electrons (5) than `Fe^(2+)` (4).
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MODERN PUBLICATION-D AND F-BLOCK ELEMENTS-PRACTICE PROBLEM
  1. Which of the following ions are expected to be coloured ? Ni^(2+) ,...

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  2. How many unpaired electrons are present in each of the following ? ...

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  3. Out of Fe^(2+) and Fe^(3+) which is more paramagnetic and why?

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  4. Calculate the magnetic moments of Fe^(2+) and Fe^(3+)

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  5. Name any three elements of second transition series which have abnorma...

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  6. Explain why Zn^(2+) salts are colouless while Ni^(2+) salts are colour...

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  7. A compound has been found to have magnetic moment of 3.9 B.M. How many...

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  8. The catalyst used in the manufacture of H2 SO4 by contact process is.

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  9. Give reason, Mn^(2+) ion is more paramagnetic than Fe^(2+) ion.

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  10. The oxidation state of Cr in K(2)Cr(2)O(7) is:

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  11. The orange colour of dichromate solution changes of blue on heating wi...

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  12. MnO2 on heating with potassium hydroxide in the presence of air forms...

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  13. Chromite is ...........

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  14. KMnO4 overset("heat")(to) ………… + MnO2 + …………..

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  15. Write ionic equation showing KMnO4 acting as an oxidising agent in ac...

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  16. What is the oxidation state of (i) Cr in dichromate ion (ii) ...

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  17. The equivalent weight of KMnO(4) in (a) neutral medium, (b) acidic med...

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  18. Complete the chemical reactions : (i) MnO4^(-) + SO2 + H^(+) to ...

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  19. What is the shape of chromate ion ?

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