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How would you account for the following?...

How would you account for the following? The atomic radii of the metals of the third (5d) series of transition elements are virtually the same as those of the corresponding members of the second (4d) series.

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. What are lanthanoids ? Explain lanthanoid contraction.

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  2. Why transition elements show catalytic property? Give two examples of ...

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

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  4. Account for the following : The E^@ value for the Mn^(3+)|Mn^(2+) coup...

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  5. Why is the highest oxidation state of a metal exhibited in its oxide...

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

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  7. Which of the following exhibits the greatest number of oxidation state...

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

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  9. How would you account for the following ? The actinoids exhibit a larg...

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  10. How would you account for the following ? Most of the transition metal...

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  11. Why enthalpy of atomisation of the transition elements are quite high ...

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  12. The 4d and 5d series of transition metals have more frequent metal-met...

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  13. Explain the following observation giving an appropriate reason : Mn^(2...

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

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  15. Write the iupac name of the compound : K2[Zn (OH)4]

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  16. Complete the following chemical equation : 2MnO4^(-)+ 5C2O4^(2-) + 16H...

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  17. What are interstitial compounds ? Mention their characteristics.

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  18. Write uses of actinoids.

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  19. Write one oxidising reaction of K2Cr2O7 in Acidic medium.

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  20. Write one oxidising reaction of KMnO4 in basic medium.

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