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USHA PUBLICATION-GENERL PRINCIPAL AND PROCESS OF ISOLATION OF ELEMENTS-EXERCISE
- Copper can be extracted by hydrometallurgy but not zinc. Explain.
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- Describe the principle of van-Arkel process for refining of metal.
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- Name three ores which can be purified by froth floatation process. Wha...
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- Name one chief ore of iron and aluminium. Name the methods used for th...
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- Explain the electrolytic refining of a metal.
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- How is zinc extracted from its sulphide ore ?
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- How is zinc dust and granulated zine prepared from zinc metal ?
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- The process used for purification of bauxite ore containing high silic...
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- What is the role of lime stone in the extraction of iron ?
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- How can you get wrought iron from cast iron ?
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- What is polling ?
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- What do you mean by autoreduction in metallurgy?
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- What is thermite welding ?
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- What is the role of silica in the metallurgy of copper?
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- Predict conditions under which Al might be expected to reduce MgO.
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- Describe Mond process for refining of nickel
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- What is the role of depressant in froth flotation process ?
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- Out of C and CO, which is a better reducing agent at 673 K?
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- What is flux ?
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- Out of 'C' and CO which is a better reducing agent for FeO ?
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