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ALLEN-METALLURGY-EXERCISE -04
- Which of the following options are correct?
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- In the extraction of aluminium by Hall-Heroult process purified AI(2)O...
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- Which of the following statements is correct about the role of substan...
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- In the Froth Floatation process, zinc sulphide and lead sulphide can b...
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- Common impurities present in bauxite are
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- Which of the following ores are concentrated by froth floatation?
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- Which of the following reactions occurs during calcination ?
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- For the metallurgical process of which of the ores calcined ore can be...
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- The main reaction occuring in blast furnace during the extraction of i...
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- In which of the following method of purification metal is converted to...
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- Which of the following statements are correct?
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- In the extraction of chlorine from brine
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- Why is an external emf of more than 2.2V required for the extraction o...
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- At temperature above 1073K coke can be used to reduce FeO to Fe. How c...
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- Wrought iron is the purest form of iron. Write a reation used for the ...
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- How is copper extracted from low grade copper ores?
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- Write two basic requirements for refining of a metal by Mond process a...
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- Although carbon and hydrogen are better reducing agents but they are n...
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- How do we separae two sulphide ores by Froth Floatation Method? Explai...
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- The purest form of iron is prepared by oxidising impurities from cast ...
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