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Why Cr^(2+) is strongly reducing while M...

Why `Cr^(2+)` is strongly reducing while `Mn^(3+)` is strongly oxidising ?

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JMD PUBLICATION-d-And f-BLOCK ELEMENTS-Example
  1. Which of the 3d-series of transition elements exhibits the largestn nu...

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  2. Why Cr^(2+) is strongly reducing while Mn^(3+) is strongly oxidising ?

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  3. Why Cr^(2+) is strongly reducing while Mn^(3+) is strongly oxidising ?

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  4. The E°(M^2+/M)value for copper is positive (+0.34 V). What is the p...

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  5. Why does Mn(II) shows maximum paramagnetic character among the dival...

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  6. Why are Mn^(2+) compounds more stable than Fe^(2+) compounds towards o...

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  7. Transition metals form mostly coloured compounds.Explain.

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  8. Most of the compounds of transition elements are paramagnetic in natur...

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  9. Explain :Transition elements exhibit variable oxidation states.

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  10. Explain why Cu(I) is diamagnetic while Cu(II) is paramagnetic.

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  11. Why are halogens coloured ?

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  12. Sc^(3+) ion is colourless while Cr^(3+) Ion is coloured. Explain.

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  13. Transition metals form alloys with other transition metals. Explain.

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

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  15. Transition metals formlarge number of complex compounds.Explain.

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

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  17. Which is stronger reducing agent Cr^(2+) or Fe^(2+) and why ?

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  18. Why are Min^(2+) compounds more stable than Fe^(2+) towards oxidation ...

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  19. What is meant by ‘disproportionation' of an oxidation state ? Give a...

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  20. Why Zn, Cd, Hg are soft and have low m.pt.

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