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Why Gd^(3+) is colourless ?...

Why `Gd^(3+)` is colourless ?

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In `G^(+3)` there are 64 electron. Hence electronic are there in outer d orbital . Due to this it is colourless.
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SURA PUBLICATION-TRANSITION AND INNER TRANSITION ELEMENTS-Answer the Following Question
  1. Justify the position of lanthanides and actinides in the periodic...

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  2. What are actinide ? Give three example .

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  3. Why Gd^(3+) is colourless ?

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  4. Explain why compounds of Cu^(2+) are coloured but those of Zn^(2...

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  5. (a) Describe the preparation of potassium dichromate.

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  6. What is lanthanide contraction and what are the effects of lanth...

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  7. Complete the following a . MnO(4)^(2+) + H^(+) to ? b . C(6) H(...

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  8. What are interstitial compounds ?

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  9. Calculate the number of unpaired electrons in Ti^(3+) , Mn^(2+) a...

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  10. Write the electronic configuration of Ce^(4+) and Co^(2+)

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  11. Explain briefly how +2 states becomes more and more stable in t...

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  12. Which is more stables ? Fe^(3+) or Fe^(2+) - explain .

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  13. Explain the variation in E(m^(2+))^(0) //M 3d series .

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  14. Compare Lantanides and actinides.

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  15. Explain why Cr^(2+) strongly reducing while Mn^(3+) is strongly ...

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  16. Compare the ionization enthalpies of first series of the transition...

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  17. Actinod contraction is greater from element to element than the ...

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  18. Comparing La(OH)(3) and Lu(OH)(3), which is more basic and explain why...

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  19. Why Europium (ii) is more stable than Cerium (ii) ?

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  20. Why do zirconium and Hafnium exhibit similar properties?

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