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AAKASH SERIES-METALLURGY-EXERCISE - 7.2
- Metal sulphides occur mainly in rocks, but metal halides occur in lake...
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- Roasting of the sulphide ore is partially done in the metallurgical op...
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- Egg shells on treating with dilute mineral acids give brisk effervence...
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- What criterion is followed for the selection of the stationary phase i...
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- Which metals are extracted by auto-reduction process?
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- Why copper pyrites roasted partially during the extraction of copper?
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- Ag and Cu are below hydrogen in activity series, yet they are found in...
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- CO is more effective reducing agent than coke below 983 K, but above 9...
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- How the following metals are refined: (a) Copper with cuprous oxide ...
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- When heamatite is burnt in air with coke and lime at 2000^(@)C, steel ...
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- Why is the extraction of copper form pyries more difficult then that f...
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- How is leaching carried out in the case of low grade copper ores?
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- Hydrogen is a common reductant of organic chemicals, but it is not ...
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- Copper can be extracted by hydrometallurgy but not Zinc -explain.
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- Alkali metals are
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- Is it true that under certain conditions, Mg can reduce SiO2 and Si c...
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- Name the metal M, which is extracted based on the following equation ...
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- In the extraction of Fe, what is the advantage of difference in temper...
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- Metal oxide is easily reduced if the metal is in molten state at the t...
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- What are the compositions of gem stones, ruby and sapphire?
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