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Why Zn^(2+) is diamagnetic whereas Mn^(2...

Why `Zn^(2+)` is diamagnetic whereas `Mn^(2+)` is paramagnetic ?

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`rarr Zn^(+2)` electronic configuration is `[Ar]4s^(0)3d^(10)`. It has no unpaired electrons. So it is dia magnetic.
`rarr Mn^(2+)` electronic configuration is `[Ar]4s^(0)3d^(5).` It has five unpaired electrons so it is paramagnetic.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-D AND F- BLOCK ELEMENTS AND CO-ORDINATION COMPOUNDS -VERY SHORT ANSWER QUESTIONS
  1. The highest Mn fluoride is MnF(4) where as the highest oxide is Mn(2)O...

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  2. In its fluoride or Oxide, in which a transition metal exhibits highest...

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  3. Why Zn^(2+) is diamagnetic whereas Mn^(2+) is paramagnetic ?

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  4. Write 'spin only' formula to calculate the magnetic moment of transiti...

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  5. Calculate the 'spin only' magnetic moment of Fe(aq)^(2+) ion.

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  6. What is meant by 'disproportionation' ? Give an example of disproporti...

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  7. Aqueous Cu^(2+) ions are blue in colour, where as Aqueous Zn^(2+) ions...

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  8. What are complex compounds ? Give examples.

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  9. Why do the transition metals forin a large number of complex compounds...

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  10. How do transition metals exhibit catalytic activity?

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  11. Give two reactions in which transition metals or their compounds acts ...

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  12. What is an alloy ? Give example.

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  13. Why do the transition metals readily form alloys ?

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  14. How do the ionic character and acidic nature vary among the oxides of ...

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  15. What is the effect of increasing pH on a solution of potassium dichrom...

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  16. Name the oxometal anions of the first series of transition metals in w...

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  17. Permanganate titrations are carried out in the presence of sulphuric a...

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  18. What is Lanthanoid contraction ?

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  19. What are the different oxidation states exhibited by the lanthanoids ?

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  20. What is Misch metal ? Given its composition and use.

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