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Though Sc is a transition element, it do...

Though Sc is a transition element, it does not exhibit variable oxidation state. Why ?

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Scandium has electronic configuration `[Ar] 4s^(2) 3d^(1)`. It has only one unpaired d-electron. So it does not exhibits variable oxidation state. It exhibits +3 stable oxidation state.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-D AND F- BLOCK ELEMENTS AND CO-ORDINATION COMPOUNDS -VERY SHORT ANSWER QUESTIONS
  1. Which metal in the first series of transition metals exhibits + 1 oxid...

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  2. Why do transition elements exhibit more than one oxidation state (varl...

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  3. Though Sc is a transition element, it does not exhibit variable oxidat...

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  4. Why is it difficult to obtain M^(3+) oxidation state in Ni, Cu and Zn ...

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  5. Why is Cr^(2+) reducing and Mn^(3+) oxidizing even though both have th...

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  6. Although Cr, Mo and W belong to the same group (group 6) Cr (VI) is a ...

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  7. What do you infer from the fact that M^(3+)//M^(2+) standard electrode...

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  8. Transition elements have high melting points. Why ?

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  9. Among the first transition series (3d series) Chromium has highest mel...

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  10. Compared to s-block elements, the transition elements exhibit higher e...

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  11. Among the first transition series (3d series) zinc has lowest enthalpy...

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  12. How do rou expect the density of transition elements to vary in a give...

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  13. How do the atomic and ionic sizes vary among transition metals in a gi...

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  14. Why do Mn, Ni and Zn exhibit more negative E^(Theta) values than expec...

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  15. Among the first transition series (3d series) only copper has positive...

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  16. Cu^(+2) forms halides like CuF(2), CuCl(2) and CuBr(2) but not CuI(2)....

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  17. The highest Mn fluoride is MnF(4) where as the highest oxide is Mn(2)O...

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

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

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

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