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Which method is used for refining Zr and...

Which method is used for refining Zr and Ti ? Explain with equation.

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The correct Answer is:
van Arkel method is used for refining `Zr` and `Ti`. In this method crude metal is heated with iodine.
`Zr +2I_(2) rarr ZrI_(4)`
`ZrI_(4) overset(1800K)rarr Zr +2I_(2)`
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ALLEN-METALLURGY-EXERCISE -04
  1. Why is sulphide ore of copper heated in a furnance after mixing with ...

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  2. Sulphdies ores are converted to oxides before reduction . This is expl...

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  3. Which method is used for refining Zr and Ti ? Explain with equation.

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  4. What should be the considering during the extraction of metal by elect...

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  5. What is the role of flux in metallurgical processes?

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  6. How are metals used as semiconductors refined ? What is the principle ...

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  7. Write down the reaction taking place in blast furnance related to the ...

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  8. Give two requirements for vapour phase refining.

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  9. Write the chemical reactions involved in the process of extraction of ...

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  10. Match the items of column I with items of column II and assign the cor...

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  11. Match the items of Column I with the items of Column II and assign the...

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  12. Match items of Column I with the items of Column II and assign the co...

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  13. Match the items of Column I with the items of Column II and assign t...

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  14. Match the items of Column I with items of Column II and assign the cor...

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  15. Assertion (A) Nickel can be purified by Mond's process. Reason ( R) ...

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  16. Assertion (A) Zirconium can be purified by van Arkel method. Reason...

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  17. Assertion (A) Sulphide ores are concentrated by froth floatation metho...

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  18. Assertion (A) Zone refining method is verty useful for producing semic...

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  19. Assertion (A) Hydrometallurgy involves dissolving the ore in a suitabl...

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  20. Explain the following (a) CO(2) is a better reducing agent below 7...

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