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Give oxidation of KI by acidified K2Cr2O...

Give oxidation of KI by acidified `K_2Cr_2O_7` .

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. Why E^(Theta) values for Mn, Ni and Zn are more negative than expected...

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

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  3. Give oxidation of KI by acidified K2Cr2O7 .

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  4. Write the iupac name of following : [Ni (H2O) 2 (NH3)4]SO4

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  5. What are lanthanoids ? Explain lanthanoid contraction.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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