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Although Zr belongs to 4d and Hf belongs...

Although Zr belongs to 4d and Hf belongs to 5d- transition series but it is quite difficult to separate them. why ?

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Which of the following element does not belong to 4d- series of transition elements ?

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USHA PUBLICATION-D- AND F_BLOCK ELEMENT & CO-ORDINATION COMPOUND -EXERCISE
  1. Write the ionic equation showing the oxidising action of K2Cr2O7 with ...

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

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

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  4. What are the transition elements?

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  5. Discuss the general characteristics properties of transition elements.

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

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

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

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

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  10. How does iron react with dilute nitric acid ?

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

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  12. What is spectrochemical series ?

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

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  14. What is crystal field splitting ?

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  15. Purest form of iron is called as

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  16. Iron becomes passive on treatment with

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  17. Bauxite ore mainly containing silica impurity is purified by

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

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  19. [Co(NH3)5Br]Cl and [Co(NH3)5Cl]Br are related as-

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  20. The composition of calamine is .

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