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What is lanthanoid contraction? What are...

What is lanthanoid contraction? What are the consequences of lanthanoid contraction?

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What is lanthanoid contraction? What are the consequences of lanthanold contraction?

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What is lanthanoid contraction? What are the consequences of lanthanold contraction?

Reason of lanthanoid contraction is

The lanthanide contraction relates to

What is meant by 'lanthanoid contraction'?

The lanthanide contraction refers to:

Lanthanoid contraction is caused due to:

Lanthanoids are-

Lanthanoid contraction is due to increase in

ICSE-d- AND- f- BLOCK ELEMENTS-EXERCISE (PART-II) (DESCRIPTIVE QUESTIONS)(LONG ANSWER QUESTIONS)
  1. Account for the following statements : (i) Co (ii) is stable in aque...

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  2. Decide giving reason which one of the following pairs has the propert...

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  3. What is lanthanoid contraction? What are the consequences of lanthanoi...

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  4. Why lanthanoids and actinoids are called f-block elements?

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  5. Assign reasons for the following: (a) Ce^(3+) can easily be oxidise...

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  6. Assign reasons for the following: (a) Zn^(2+) salts are white while ...

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  7. Assign reasons for the following : (a) Co^(2+) has higher magnetic ...

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  8. Assign reasons for the following : (b) The ionization energy of 5d e...

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  9. Assign reasons for the following : Write equations for the preparati...

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  10. Assign reasons for the following: Sc^(3+) ion is colourless while Cr...

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  11. Why are Mn^(2+) compounds more stable than Fe^(2+) towards oxidation t...

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  12. Assign reasons for the following: Cu(I) compounds are white and diam...

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  13. Assign reasons for the following: Why is the chemistry of all lantha...

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  14. Assign reasons for the following: What is lanthanoid contraction ? E...

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  15. How and you account for the following : (i) Cabalt (II) is stable in...

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  16. Why Sm^(2+) , Eu^(2+) and Yb^(2+) ions are good reducing agents , but ...

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  17. Compare the properties of lanthanoids and actinoids.

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  18. Given below are the electrode potential values, E^(Theta) for some of ...

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  19. Complete the following chemical reaction equations : (i) Cr(2)O(7)^(...

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  20. Decribe the general trends in the following properties of the first se...

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