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Write reactions of K2Cr2O7, in acidic me...

Write reactions of `K_2Cr_2O_7`, in acidic medium with `H_2S`.

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JMD PUBLICATION-d-And f-BLOCK ELEMENTS-Example
  1. Write reactions of K2Cr2O7, in acidic medium with Kl

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  2. How acidified K2Cr2O7 reacts with the following : FeSO4

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  3. Write reactions of K2Cr2O7, in acidic medium with H2S.

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  4. How acidified K2Cr2O7 reacts with the following : Na2SO4

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

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  6. Give the preparation of KMnO4 from pyrolusite ore.

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  7. Draw the structure of permanganate ion.

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

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

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  10. What happens when acidic KMnO4 reacts with Kl ?

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

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

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  13. What are lanthanoids ?

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

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  15. Why are Lanthanides called inner transition metals.

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  16. What are different oxidation states exhibited by lanthanoids ?

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

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

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

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  20. Why is separation of lanthanide elements difficult ?

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