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Why are Mn^(2+) compounds more stable th...

Why are `Mn^(2+)` compounds more stable than `Fe^(2+)` compounds towards oxidation to their +3 state ?

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. How do you prepare: K2MnO4 from MnO2 ?

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  2. How do you prepare: Na2Cr2O7 from Na2CrO4 ?

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

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  4. Account for the following : The enthalpy of atomization is lowest for ...

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  5. How would you account for the following: There is a greater range of o...

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  6. Name the element of 3d transition series which shows maximum number of...

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  7. Which transition metal of 3d series has positive E(M^(2+)|M)^(@) value...

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

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  9. Name a member of the lanthanoid series which is well known to exhibit ...

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  10. Express 2120 in roman numbers.

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  11. Out of Cu^(2+) and Cu^(+) ion, which one is colourless and why?

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  12. What is lanthanoid contraction? Explain Any two consequences of lantha...

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  13. The ionisation energies of 6d elements are Greater than 3d elements. G...

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  14. Express 2121 in roman numbers.

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  15. Express 1202 in roman numbers.

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  16. Express 2123 in roman numbers.

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  17. Express 2125 in roman numbers.

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

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

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  20. What are the main consequences of lanthanoid contraction ?

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