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Bauxite ore mainly containing silica imp...

Bauxite ore mainly containing silica impurity is purified by

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Silver containing lead as impurity is purified by :

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USHA PUBLICATION-GENERL PRINCIPAL AND PROCESS OF ISOLATION OF ELEMENTS-EXERCISE
  1. How is zinc extracted from its sulphide ore ?

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  2. How is zinc dust and granulated zine prepared from zinc metal ?

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  3. Bauxite ore mainly containing silica impurity is purified by

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  4. What is the role of lime stone in the extraction of iron ?

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  5. How can you get wrought iron from cast iron ?

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  6. What is polling ?

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  7. Give an example of a metal which is obtained by autoreduction process.

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  8. What is thermite welding ?

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  9. What is the role of silica in the metallurgy of copper?

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  10. What are the condition in which Al can reduce MgO and Mg car reduce AI...

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  11. Describe Mond process for refining of nickel

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  12. What is the role of depressant in froth flotation process ?

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  13. Out of CO and C, which is a better reducing agent at 400^@C ?

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  14. What is the role of lime stone in the extraction of iron ?

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  15. Out of 'C' and CO which is a better reducing agent for FeO ?

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  16. From a solution of copper sulphate, copper metal can be recovered by a...

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  17. Malachite is the ore of .

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  18. In which type of ores, froth floatation process is generally used for ...

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  19. In the Bessemerisation process copper metal obtained by the reaction

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  20. The iron obtained from the blast furnace is called as

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