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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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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. The element of second transition series which shows maximum number of ...

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  2. Express 1366 in roman numbers.

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

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  4. Name the members of lanthanoid series which exhibit +2 O.S. Assign rea...

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  5. Express 1367 in roman numbers.

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  6. Why Cu(l) is colourless and Cu(ll) is blue in colour ?

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  7. Write any two consequences of lanthanoids contraction.

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  8. Why are I.E. of 5d - elements greater than 3d- elements ?

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  9. Write the general electronic configuration of transition elements.

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  10. Give three differences between lanthanides and actinides.

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  11. What happens when: KMnO4 is heated at 746 K ?

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  12. What happens when: K2Cr2O7 is heated ?

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  13. Explain why [Ti (H2O)6]^(3+) is violet while [Ti (H2O)6]^(4+) is colou...

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

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  15. What are the main consequences of lanthanoid contraction ?

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  16. What happens when K2Cr2O7 reacts with NaCl in the presence of conc. H2...

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  17. What happens when Acidified KMnO4 reacts with H2S?

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  18. Explain why TiCl3 is coloured but TiCl4 is colourless ?

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  19. Why transition metals show catalytic properties?

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  20. Compare the chemistry of actinides with that of the lanthanides with...

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