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Write down the reaction taking place in different zones in the blast furnace during the extraction of iron.

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R G PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE
  1. How does the FeO impurity present in sulphide ore of copper is removed...

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  2. Name one important ore of aluminium. Give its chemical composition.

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  3. Write down the reaction taking place in different zones in the blast f...

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  4. Name the method used for the refining of Nickel.

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  5. Differentiate between 'minerals' and 'ores'.

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  6. Distinguish between calcination and roasting.

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  7. Name the main ore of iron.

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  8. How is cast iron made from pig iron?

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  9. Name the method used for the refining of Nickel.

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  10. How copper is extracted from low grade ore?

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  11. The process of removing matrix by fusing with flux is known as-

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  12. Iron ores are separated from its impurities by-

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  13. The reason for using 'depressants' in Froth Flotation Method is-

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  14. One of the impurities present in bauxite is.

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  15. Which of the folloiwng is not concentrated by froth floatation process...

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  16. Sodium tetracyano zincate(II) is produced as bi product during the ext...

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  17. During roasting.

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  18. The thermodynamic principles of metallurgy is based on-

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  19. The chemical process in the production of steel from haemative ore inv...

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  20. Which of the following order represents correct carbon content?

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