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TARGET PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-Evaluation Thinking
- Which is the mineral of iron ?
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- An example of halide ore is .
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- A flux is often added to remove impurities from a concentrated ore. ...
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- Before introducing FeO in blast furance, it is converted to Fe(2)O(3) ...
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- The principle involved in zone refining method is that .
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- Cryolite is
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- A metal which is refined by polling is .
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- Silica is added to roasted copper ore during smelting in order to remo...
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- In Hall and Heroult's process, products liberated at anode and cathode...
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- Which statement is CORRECT ?
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- Which of the following reactions has downward slope in the Elligham di...
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- Roasting involves .
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- Silver may be obtained by .
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- Acidified zinc sulphate solution used as an electrolyte during electro...
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- Which of the following ores does NOT show the correct formula ?
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- In bessemerization, the sulphide of copper is reduced by .
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