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R G PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE
- Name one metal which is refined by Van Arkel method?
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- complete the following reaction Al2O3+C rarr
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- Which metal foils are used for wrapping chocolates?
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- What are ores? Name one sulphide ore.
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- Explain the role of Cryolite in the electrolytic reducion of alumina.
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- How does the FeO impurity present in sulphide ore of copper is removed...
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- Name one important ore of aluminium. Give its chemical composition.
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- Write down the reaction taking place in different zones in the blast f...
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- Name the method used for the refining of Nickel.
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- Differentiate between 'minerals' and 'ores'.
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- Distinguish between calcination and roasting.
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- Name the main ore of iron.
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- How is cast iron made from pig iron?
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- Name the method used for the refining of Nickel.
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- How copper is extracted from low grade ore?
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- The process of removing matrix by fusing with flux is known as-
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- Iron ores are separated from its impurities by-
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- The reason for using 'depressants' in Froth Flotation Method is-
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- One of the impurities present in bauxite is.
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- Which of the folloiwng is not concentrated by froth floatation process...
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