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What is role of flux in removing impurit...

What is role of flux in removing impurities ?

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BEYOND PUBLICATION-PRINCIPLES OF METALLURGY-EXERCISE
  1. How do the impurities change during smelting ?

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  2. How do the ore get heated in smelting process ?

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  3. What is role of flux in removing impurities ?

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  4. Write two sentences about the reactivity of 'Pb'.

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  5. There is metal which has low boiling point. To refine it which process...

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  6. Pure iron is available to you. If you want to make buckets and cooking...

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  7. Sowmya says 'molten products are obtained in blast furnace'. But Radha...

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  8. The displacement reactions involving high reactive metals are highly

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  9. is the method the required metal gets deposited at the cathode.

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  10. …………chemical process involves heat.

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  11. furnace has both furnace and hearth separated.

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  12. If the impurity (gangue) is acidic substance, then the flux used is

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  13. Correct statement among the following :

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  14. Extract Na from NaCl, we obtain Na at

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  15. Which of the following slag is formed between CaO and SiO2?

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  16. Which of the following matching is wrong ?

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  17. Which of the following step is not involved in the extraction of Ag ?

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  18. Chemically rust is a

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  19. More the H+ ion concentration increases the rate of rusting due to

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  20. Which of the following is the correct order of activities series ?

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