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Give the preparation of KMnO4 from pyrol...

Give the preparation of `KMnO_4` from pyrolusite ore.

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JMD PUBLICATION-d-And f-BLOCK ELEMENTS-Example
  1. How acidified K2Cr2O7 reacts with the following : Na2SO4

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  2. Give balanced equations for the reaction between Acidified Potassium d...

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  3. Give the preparation of KMnO4 from pyrolusite ore.

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  4. Draw the structure of permanganate ion.

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  5. Write reactions of KMnO4, in acidic meduim with FeSO4

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

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  7. What happens when acidic KMnO4 reacts with Kl ?

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

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

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  10. What are lanthanoids ?

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

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  12. Why are Lanthanides called inner transition metals.

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  13. What are different oxidation states exhibited by lanthanoids ?

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

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

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

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  17. Why is separation of lanthanide elements difficult ?

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

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  19. Why Zr and Hf exhibit similar properties ?

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

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