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Write any four differences between lanth...

Write any four differences between lanthanoids and actinoids.
Lanthanoids
Actinoids

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To differentiate between lanthanoids and actinoids, we can consider the following four key differences: 1. **Electron Configuration**: - **Lanthanoids**: The last electron enters the 4f orbital. - **Actinoids**: The last electron enters the 5f orbital. 2. **Color**: - **Lanthanoids**: Some lanthanoids are colorless, while others are colored. ...
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(a) Give two differences between Lanthanoids and Actinoids. (b) How many unpaired electrons are present in Fe^(3+) and Zn^(2+) (c) Why is La(OH)_3 stronger base while Lu(OH)_3 is weaker base?

(a) Give three points of difference between lanthanoids and actinoids. (b) Give reason and select on one atom/ion which will exhibit asked property: (i) Sc^(3+) or Cr^(3+) (exhibit diamagnetic behaviour) (ii) Cr or Cu (high melting and boiling point)

Write four points of distinction between Lanthanoids and Actinoids

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CBSE COMPLEMENTARY MATERIAL-The d- AND f-BLOCK ELEMENTS-SHORT ANSWER-II TYPE QUESTION
  1. Describe the oxidizing action of with the following. K(2) Cr(2) O(7)W...

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  2. Describe the oxidizing action of with the following. K(2) Cr(2) O(7)W...

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  3. Write any four differences between lanthanoids and actinoids. Lanth...

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  4. give reason for the following statement (a)separation of lanthanoid el...

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  5. (b) Transition metal exhibit higher enthalpies of atomization. Explain...

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  6. (c) Why do the transition metal have high enthalpy of hydration ?

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  7. (a) By using Hund’s rule derive the electronic configuration of Ce^(+3...

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  8. (b) Is lanthanum a f-block element ?

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  9. Account for the following : (a) Silver chloride dissolves in excess ...

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  10. Account for the following : (b) Cuprous chloride is diamagnetic whil...

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  11. Account for the following : In CrO(4)^(2-) ion , all the Cr-O bond...

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  12. The values in respect of electrodes of Cr, Mn and iron are : Cr^(+3...

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  13. Write any three properties of interstitial compounds.

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  14. Account for the following : (a) All Scandium salts are white.

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  15. Account for the following : (b) The Ist ionization energy of the 5d ...

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  16. Account for the following : (c) Ce^(+3) can be easily oxidized to Ce...

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  17. A green chromium compound (A) on fusion with alkali gives a yellow

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  18. A green chromium compound (B) which on acidification gives a orange c...

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  19. A green chromium compound (C). Identify A, B, C. Write equations for ...

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  20. When an oxide of Mn (A) is fused with KOH in the presence of an oxi...

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