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Describe the principle of van-Arkel proc...

Describe the principle of van-Arkel process for refining of metal.

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USHA PUBLICATION-D- AND F_BLOCK ELEMENT & CO-ORDINATION COMPOUND -EXERCISE
  1. What is leaching ? Glve an example.

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  2. [Fe(CN)6]^(4-) and [Fe(H2O)6]^(2+), are of different colours in dilate...

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  3. Describe the principle of van-Arkel process for refining of metal.

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  4. Difference between double salt and complex salt.

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  5. Write the name and composition of two ores of copper.

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  6. Give the principle of extraction of copper from one of its ore.

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  7. What are transition metals ? Write their general outer electronic conf...

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  8. Discuss the general characteristics properties of transition elements.

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  9. Indicate the steps in the preparation of K2Cr2O7 from chromite ore.

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  10. Write the principle of extraction of 'Zn from its sulphide ore.

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  11. What is spectrochemical series ?

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

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  13. Write two important ores of aluminium.

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  14. Discuss the principle of extraction of aluminium from one of its chief...

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  15. Write two important ores of iron.

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  16. Give the principle of extraction of iron from one of its ore.

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  17. The correct order of bond dissociation energy of halogens is .

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  18. In which reaction ozone acts as reductant ?

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  19. Oxygen and Ozone are .

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  20. The shape and hybridisation of XeF4 is

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