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Explain the following: Co (II) is stable...

Explain the following: Co (II) is stable in aquous solution but in the presence of the complexing agents, it is easily oxidised.

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ASSAM ACADEMIC CENTRE-The d and f-block elements-Example
  1. Compare the chemistry of Actinoids with that of the Lanthanoids with s...

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  2. Compare the chemistry of actinoids with that of the lanthanoids with s...

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  3. Explain the following: Co (II) is stable in aquous solution but in the...

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  4. How would you account for the following: The d^1 configuration is very...

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  5. What is meant by disproportionation? Give one example of disproportion...

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  6. Which matal in the first series of transition metal exhibite +1 oxidat...

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  7. Give reason: among transition metals, the highest oxidation state is e...

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  8. What are alloys? Name an important alloy which contains some of the la...

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  9. Which is the last element in the series of the actinoids? Write the el...

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  10. Use Hund's rule to derive the electronic configuration of Ce^(3+) ion ...

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  11. Compare the chemistry of Actinoids with that of the Lanthanoids with s...

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  12. Compare the chemistry of Actinoids with that of the Lanthanoids with s...

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  13. Compare the chemistry of actinoids with that of the lanthanoids with s...

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  14. Write the electronic configuration of the elements with the atomic num...

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  15. Why is copper sulphate pentahydrate coloured?

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  16. Give reasons: Why is HCl not used to acidify a permanganate solution i...

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  17. What are lanthanoids?

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  18. Write the highest oxidation state exhibited by chromium (Z = 24).

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  19. What is the most stable oxidation state of manganese (Z = 25)?

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  20. Name the first element of the 3d transition metal series.

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