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Write the ionic equation showing the oxi...

Write the ionic equation showing the oxidising action of `K_2Cr_2O_7` with `H_2S`.

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USHA PUBLICATION-D- AND F_BLOCK ELEMENT & CO-ORDINATION COMPOUND -EXERCISE
  1. Write three main postulates of VBT for explaining bonding in co-ordina...

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  2. Write the ionic equation for the oxidising action of potassium dichrom...

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  3. Write the ionic equation showing the oxidising action of K2Cr2O7 with ...

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  4. What is misch metal ? Write its two important uses.

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  5. Although Zr belongs to 4d and Hf belongs to 5d- transition series but ...

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  6. What are the transition elements?

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  7. Discuss the general characteristics properties of transition elements.

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  8. Write short notes on : Werner's theory of co-ordination compounds.

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  9. Write short notes on : Structural isomerism in co-ordination compounds...

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  10. Why does copper not liberate H2 gas from dilute mineral acid ?

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  11. Explain why Fe^(3+) ion is more stable than Fe^(2+) ion in aqueous sol...

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  12. How does iron react with dilute nitric acid ?

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  13. Why are Zn^(2+) salts white, while Cu^(2+) salts blue ?

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  14. What is spectrochemical series ?

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  15. Explain the difference between weak field ligand and strong field liga...

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  16. What is crystal field splitting ?

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  17. Purest form of iron is called as

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  18. Iron becomes passive on treatment with

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  19. Bauxite ore mainly containing silica impurity is purified by

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  20. The no. of unpaired electrons in Fe^(3+) ion (Z=26) is

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