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प्रश्न
What is the role of flux in metallurgical processes?
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उत्तर
The ores, even after concentration, contain some gangue. To remove gangue, certain substances are mixed with concentrated ore which combine with the gangue to form a fusible material which is not soluble in molten metal. The substances used are called fluxes.
Fluxes are classified as:
(i) Acidic flux and
(ii) Basic flux. Acidic flux removes basic impurities while basic flux removes acidic impurities.
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संबंधित प्रश्न
State the main components of the following alloys:
Brass
State the use of:
hard steel
State amalgam use with an example.
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Complete the statement using every given option.
During the extraction of aluminium..............
Use of leaching during the concentration of ore.
Complete the statement using every given option.
During the extraction of aluminium.........
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Name the following:
The kind of welding in which aluminium powder is used.
Name the following:
The chief metal present in magnalium and duralumin
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Two metals which occur in nature in free state as well as in combined state.
Define the term : Ore
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Give composition and uses of the following alloys. Mention the reason for its use.
Brass
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Bronze
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Fe2O3 + CO →
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Name the following :
The process of coating of iron with zinc.
Nickel is purified by thermal decomposition of its:-
