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Assign a reason for each of the followin...

Assign a reason for each of the following: The third ionization enthalpy of Mn (Z = 25) is higher than that of either Cr (Z = 24) or Fe (Z = 26).

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ASSAM ACADEMIC CENTRE-The d and f-block elements-Example
  1. What are transition elements? Give the general electronic configuratio...

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  2. Why is copper considered a transition metal, although it has completel...

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  3. Assign a reason for each of the following: The third ionization enthal...

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  4. Assign a reason for each of the following: The third ionization enthal...

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  5. Though copper, silver and gold have completely filled set of d-orbital...

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  6. Give the electronic configuration of copper (Z = 29).

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  7. What is the action of acidified K2Cr2O7 on KI?

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  8. What are amalgams?

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  9. Which is the densest transition metal?

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  10. What are coinage elements?

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  11. What is the number of unpaired electrons in Fe^(2+) ion (ferrous ion)?

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  12. What are the colours of Fe^(2+).

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  13. Name a transition element which does not exhibit variable oxidation st...

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  14. What is the number of unpaired electrons in Fe^(2+) ion (ferrous ion)?

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  15. Which of the two is paramagnetic V(IV) and V(V) and why?

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  16. Which one is more paramagnetic: Fe^(2+) or Fe^(3+) (Z = 26)? Give reas...

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  17. Mn (II) shows maximum paramagnetic character amongst the divalent ions...

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  18. What are lanthanoids?

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  19. Write electronic configuration of Fe^(2+) and Cr^(3+).

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  20. Write electronic configuration of Ni^(2+) and Cu^(2+).

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