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Why do La, Gd and Lu exhibit only +3 oxi...

Why do La, Gd and Lu exhibit only +3 oxidation state ?

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JMD PUBLICATION-d-And f-BLOCK ELEMENTS-Example
  1. What happens when acidic KMnO4 reacts with Kl ?

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  2. How acidified KMnO4 solution reacts with the following in acidic med...

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  3. What is the action of heat on K2Cr2O7 and KMnO4?

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  4. What are lanthanoids ?

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  5. Write the general electronic configuration of f-block elements.

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  6. Why are Lanthanides called inner transition metals.

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  7. What are different oxidation states exhibited by lanthanoids ?

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  8. Why do La, Gd and Lu exhibit only +3 oxidation state ?

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  9. The +3 oxidation state of Lanthanium (Z=57). Gadolinium (Z=64) and Lut...

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  10. What is Lanthanide contraction ? What is the cause and consequences of...

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  11. Why is separation of lanthanide elements difficult ?

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  12. Why is La(OH)3 more basic than Lu(OH)3 ?

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  13. Why Zr and Hf exhibit similar properties ?

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  14. The second and third members in a group of transition metals have simi...

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  15. Compare the chemistry of actinides with that of the lanthanoids with...

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  16. Compare the chemistry of actinides with that of the lanthanides with...

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  17. Compare the chemistry of actinides with that of Lanthanides with speci...

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  18. Compare the chemistry of actinides with that of the lanthanides with...

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  19. Give various uses of lanthanides and actinides.

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  20. What arecoinage metals ?

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