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Account for the zero oxidation staie of ...

Account for the zero oxidation staie of Ni and Fe in `[Ni(CO)_(4)] and [Fe(CO)_(5)]` respectively.

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In `[Ni(CO)_(4)] and [Fe(CO)_(5)]` the oxidation state of Ni and Fe is zero. These low oxidation states found when the complex compound has ligaqds capable of `pi`-acceptor character in addition to-the `sigma`-bonding.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-D AND F- BLOCK ELEMENTS AND CO-ORDINATION COMPOUNDS -SHORT ANSWER QUESTIONS
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  2. Compared to the changes in atomic and ionic sizes of elements of 3d an...

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  3. Account for the zero oxidation staie of Ni and Fe in [Ni(CO)(4)] and [...

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  5. Explain the catalytic action of Iron(III) in the reaction between I an...

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  6. What are interstitial compounds ? How are they formed ? Give two examp...

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  7. Write the characteristics of interstitial compounds.

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  8. Wtite the characteristic properties of transition elements.

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  9. Write down the electronic configuration of Cr^(3+)

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  10. Write down the electronic configuration of Cu^(+)

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  11. Write down the electronic configuration of Co^(2+)

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  12. Write down the electronic configuration of Mn^(2+)

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  13. What may be the stable oxidation state of the transition element with ...

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  14. What is lanthanoid contraction ? What are the consequences of lanthano...

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  15. How is the variability in oxidation states of transition metals differ...

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  16. Describe the preparation of potassium dichromate from iron chromite or...

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  17. Describe the oxidising action of potassium dichromate and write the io...

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  18. Describe the preparation of potassium permanganate.

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  19. How does the acidified permanganate solution react with iron (II) io...

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  20. How does the acidified permanganate solution react with SO(2) Writ...

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