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Compared to s-block elements, the transi...

Compared to s-block elements, the transition elements exhibit higher enthalpy of atomization. Why ?

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Because of large no. of unpaired electrons in their atoms transition elements have stronger inter atomic interaction and hence stronger bonding between atoms resulting in higher enthalpies of atomisation.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-D AND F- BLOCK ELEMENTS AND CO-ORDINATION COMPOUNDS -VERY SHORT ANSWER QUESTIONS
  1. Transition elements have high melting points. Why ?

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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  17. What are complex compounds ? Give examples.

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

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  19. How do transition metals exhibit catalytic activity?

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

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