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Explain the following observation: (i)...

Explain the following observation:
(i) Transiton elements generally from colourd compounds.
(ii) Zinc is not regarded as a transition element.

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The correct Answer is:
2(i) They contain incompletely filled d-orbitals and unpaired electrons can undergo d-d transition by absorbing light from the visible region.
(ii) because Zinc has completely filled d-orbitals `(3d^(10))`.
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RESONANCE-D BLOCK ELEMENTS-EXERCISE-3 PART-III
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  2. How would you account for the fact that the transition metals and thei...

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  3. Assign reasons for the following : (i) The enthalpies of atomisatio...

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  4. How would you account for the fact that actinoids exhibit a larger num...

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  5. (a) Complete the following chemical reaction equation :(i)MnO(4(aq))^(...

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  6. Explain the following observation: (i) Generally there is an increas...

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  7. How would you account for the following? (i) The atomic radii of the...

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  8. Explain the following cases giving appropriate reason: (i) Nickel do...

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  9. (a) Complete the following chemical equation: (i) Cr(2)O(7)^(2-)(aq)...

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  10. How would you account for the following? (i) The atomic radii of the...

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  11. Explain the following observation: (i) Transiton elements generally ...

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  12. What is meant by the 'lanthanide contraction'? Mention one important f...

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  13. How would you account for the following: (i) Cr^(2+) is reducing in ...

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  14. Complete the following chemical equation: (i) MnO(4)^(-)(aq)+s(2)O(3...

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  15. Assign reasons for the following : (i) Copper (I) ion is not known i...

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  16. Complete the following chemical equation: (i) MnO(4)^(-)(aq)+s(2)O(3...

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  17. How would you account for the following : (i) Among lanthanoids,Ln(I...

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  18. How would you account for the following ? (i) Many of the transition...

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  19. (a) Which metal in the first transition series (3d series) exhibits+ 1...

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  20. How would you account for the following? (i) Transition metals exhibi...

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