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ARIHANT PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -ODISHA BUREAU.S TEXTBOOK SOLUTIONS (FILL IN THE BLANKS TYPE QUESTIONS )
- Sulphide ores are generally concentrated by
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- The process of heating ore in the absence or limited supply of air, is...
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- Roasting is heating of ore in presence of ……………… of air.
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- Minerals, from which metal can be extracted economically, are called …...
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- The art of extracting metals from their ores is called ……………
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- The process of removal of gangue or matrix from the ore is known as ……...
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- Coke used during smelting of iron acts as fuel as well as ……………… agen...
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- Substance used during smelting to remove gangue in the form of slag, i...
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- The flux combines with the gangue to form fusible mass, called…………..
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- The process of purification of metals to get extra-pure metals is know...
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- Highly electropositive metals such as alkaline earth's are extracted b...
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- In electrolytic refining, the crude metal is made………………
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- Reduction of metal oxides by aluminium metal is called………..
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- During carbon reduction process, an additional substance added to get ...
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- The flux combines with the gangue to form fusible mass, called…………..
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- Calcination helps to remove ……….. And ……….
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- Na//Hg is prepared in order to decrease the…………... It is also used as ...
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