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Name the elements of 3d series. Give the...

Name the elements of 3d series. Give their electronic configuration. Explain why transition metals exhibit variable oxidation states.

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DINESH PUBLICATION-D-AND -F BLOCK ELEMENTS-Assignment
  1. Explain why Zn^(2+) salts are colouless while Ni^(2+) salts are colour...

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  2. Why are Mn^(2+) compounds more stable than Fe^(2+) toward oxidation to...

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  3. Why are Zn, Cd and Hg quite soft and have low melting points ?

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  4. Why are Cd^(2+) salts white ?

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  5. Why Zn, Cd and Hg are not considered as typical transitions elements ?

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  6. Describe the trends in the following properties of the first series of...

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  7. Explain the following observation about the transition elements. (i)...

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  8. Among the divalent cations in the first transition series, manganese e...

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  9. Describe the general characteristics of transition elements with speci...

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  10. Name the elements of 3d series. Give their electronic configuration. E...

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  11. How would you account for the following : (i) Cr^(2+) is reducing i...

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  12. State the reason for the following : (i) Cu (I) ion is not stable in...

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  13. Explain the following : (i) Cu^(+) is colourless and Cu^(2+) is colo...

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  14. Why do transition metals form coloured complexes ?

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  15. Silver atom has completely filled d orbitals (4d^(10)) in its ground s...

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  16. Zn^(2+) salt are white while Cu^(2+) salts are blue. Assign reason.

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  17. What are Interstitial compunds ? Give an example.

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  18. Explain the following : (i) Most of the transition elements show var...

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  19. (i) What are intersitial compounds ? Give their general characteristic...

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  20. (i) What are transition elements ? (ii) Why do transition elements s...

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