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Complete the following chemical equation...

Complete the following chemical equation : `Cr_2O_7^(2-) (aq)+ Fe^(2+) (aq)+ H^(+) (aq)rarr`

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MODERN PUBLICATION-d-AND f- BLOCK ELEMENTS-EXERCISE
  1. Give an explanation for the following observation : The greatest numbe...

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  2. Give reason, Mn^(2+) ion is more paramagnetic than Fe^(2+) ion.

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  3. Complete the following chemical equation : Cr2O7^(2-) (aq)+ Fe^(2+) (a...

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  4. Complete the following chemical equation : 2CrO4^(2-) + 2H^(+) rarr

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  5. Complete the following chemical equation : MnO4^(-)(aq) + H2O2(aq)+ H^...

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  6. What are interstitial compounds ? Why are such compounds well known fo...

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  7. Write uses of actinoids.

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  8. Write reactions of K2Cr2O7, in acidic medium with Kl

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  9. Write one oxidising reaction of KMnO4 in basic medium.

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  10. What are different oxidation states exhibited by lanthanoids ?

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  11. Draw the structure of chromate ion CrO4^(2-)

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  12. Write the oxidation of H2S by acidified KMnO4.

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  13. Explain magnetic behaviour of transition elements.

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  14. Explain the structure of Cr2O7^(2-)

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

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  16. Describe the preparation of potassium permanganate. How does the acidi...

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  17. Transition elements and their compounds are found to be good catalysts...

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  18. What is lanthanoid contraction ?

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  19. Give the preparation of Potassium Permanganate from Pyrolusite ore.

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  20. Which element belongs to d-block elements ?

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