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NCERT TELUGU-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Exercises
- Copper can be extracted by hydrometallurgy but not Zinc -explain.
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- What is the role of depressant in froth floatation?
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- Why is the extraction of copper form pyries more difficult then that f...
04:04
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- Explain Zone refining.
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- Between C and CO, which is a better reducing agent at 673K.
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- Name the common elements present in the anode mud in the eletrolytic r...
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- Write down the chemical reactions taking place in different zones in t...
03:53
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- Write down the chemical reactions taking place in the extraction of zi...
02:48
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- State the role of silica in the metallurgy of copper.
03:18
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- What is meant by the term “chromatography”?
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- What criterion is followed for the selection of the stationary phase i...
02:22
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- Decribe a method for the refining of nickel.
02:38
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- How is alumina separated from silica in the bauxite ore associated wit...
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- Explain roasting and calcination.
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- How is cast iron different from pig iron?
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- Differentiate between “minerals” and “ores”.
02:38
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- Why copper matte is put in silica lined converter?
03:02
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- What is the role of cryolite in the metallurgy of aluminium?
02:51
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- How is leaching carried out in the case of low grade copper ores?
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- Why is zinc not extracted from zinc oxide through reduction using CO?
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