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Give an explanation for the following ob...

Give an explanation for the following observation : With the same d-orbital configuration `(d^4)`, `Cr^(2+)` ion is a reducing agent but `Mn^(3+)` ion is an oxidising agent.

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. Which among the followings is most basic in aqueous solution

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  2. Which of the 3d-series of transition elements exhibits the largestn nu...

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  3. Give an explanation for the following observation : With the same d-or...

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  4. Which of the 3d-series of transition elements exhibits the largestn nu...

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  5. How would you account for the following ? Metal-metal bonding is more ...

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  6. Among lanthanoids, Ln (III) compounds are predominant. However, occasi...

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  7. The E(M^(2+) // M)^@ for copper is positive (0.34 V). Copper is the on...

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  8. Express 1381 in roman numbers.

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  9. Transition metals form number of interstitial compounds. Explain.

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  10. Explain the following observation : There is a general increase in den...

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  11. Why the actinoids exhibit a large number of oxidation states than the ...

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  12. Why do transition metals have high enthalpies of atomization ?

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  13. How would you account for the following: There is a greater range of o...

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  14. Why do transition metals form complexes ?

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  15. Express 1365 in roman numbers.

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  16. Write chemical reaction for preparation of K2Cr207 from chromite ore.

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  17. Transition metals form number of interstitial compounds. Explain.

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  18. Compare the chemistry of actinides with that of the lanthanoids with...

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  19. Compare the chemistry of actinides with that of Lanthanides with speci...

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  20. Compare the chemistry of actinides with that of the lanthanides with...

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