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Give reasons: Actinoids show irregularit...

Give reasons: Actinoids show irregularities in their electronic configurations.

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. Account for the following: Mn shows the highest oxidation state of +7 ...

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  2. Give reasons: Transition metals show variable oxidation states.

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  3. Give reasons: Actinoids show irregularities in their electronic config...

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  4. Transition elements and their compounds are found to be good catalysts...

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  5. How would you account for the following? The atomic radii of the metal...

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

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  7. Complete the following chemical equation : MnO4^(-)(aq) + S2O3^(2-)(aq...

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  8. Complete the following chemical equation : Cr2O7^(2-) (aq)+ Fe^(2+) (a...

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  9. Explain the following observation : Cu^+ ion is not known in aqueous s...

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

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

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  12. How would you account for the following ? In a transition series of me...

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

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

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

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  16. How would you account for the following? The atomic radii of the metal...

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

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

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

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  20. Why do the transition elements have higher enthalpies of atomisation? ...

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