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On the basis of lanthanoid contraction, ...

On the basis of lanthanoid contraction, explain the following :
Radii of 4d and 5d - block elements.

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Due to lanthanide contraction, radii of 4d and 5d - block elements belonging to the same group will almost be the same.
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On the basis of lanthanoid contraction, explain the following : Trends in the stability of oxo - salts of lanthanoids from La to Lu.

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CHHAYA PUBLICATION-D - AND F - BLOCK ELEMENTS -SOLVED NCERT EXEMPLAR PROBLEMS (Long Answer Type)
  1. Identify A to E and also explain the reactions involved.

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  2. When a chromite ore (A) is fused with sodium carbonate in free excess ...

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  3. When an oxide of manganese (A) is fused with KOH in the presence of an...

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  4. On the basis of lanthanoid contraction, explain the following : Nat...

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  5. On the basis of lanthanoid contraction, explain the following : Tre...

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  6. On the basis of lanthanoid contraction, explain the following : Sta...

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  7. On the basis of lanthanoid contraction, explain the following : Rad...

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  8. On the basis of lanthanoid contraction, explain the following : Tre...

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  9. Answer the following questions : Which element of the first transit...

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  10. Answer the following questions : Which element of the first transit...

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  11. Answer the following questions : Which element of the first transit...

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  12. Answer the following questions : Identify the metal and justify you...

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  13. Mention the type of compounds formed when small atoms like H, C and N ...

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  14. Transition metals can act as catalysts because these can change their ...

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  15. Mention any three processes where transition metals acts as catalysts.

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  16. A violet compound of manganese (A) decomposes on heating to liberate o...

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