Tag: basics of metallurgy
Questions Related to basics of metallurgy
Which of the following statements is/are correct regarding metallurgy?
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Both calcination and roasting are generally carried out in the same furnace, i.e., reverberatory furnace.
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The slag formed during the extraction of Copper metal from Chalcopyrites ore is $CaSiO _3$.
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Mond's process involved in the extraction of nickel is related with formation and decomposition of a square planner complex of nickel metal.
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In case of electrolytic refining of extracted metals, generally impure metal rod is made the anode and pure metal rod is made the cathode.
Both calcination and roasting are generally carried out in the this furnace, one in absence of air and other in presence of air.
The slag formed during the extraction of Copper metal from Chalcopyrites ore is $FeSiO _3$.
Mond's process involved in the extraction of Nickel is related with formation and decomposition of a tetrahedral complex of nickel metal $[Ni(CO) _4]$.
Silver can be separated from lead by:
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Distillation
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Amalgamation
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Filtration
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Cupellation
Cupellation is a process where ores are treated under high temperatures and controlled operations to separate noble metals like gold and silver from base metals like lead, copper, zinc, and others present in the ore or alloyed metal.
Refining of silver is done by___________.
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liquidation
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poling
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cupellation
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van Arkel method
Cupellation is a process where ores are treated under high temperatures and controlled operations to separate noble metals like gold and silver, from base metals like led, copper, zinc, and others present in the ore or alloyed metal.
Refining of silver is done by________.
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liquidation
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Poling
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cupellation
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van Aekel method
Cupellation is a process where ores are treated under high temperatures and controlled operations to separate noble metals like gold and silver, from base metals like led, copper, zinc, and others present in the ore or alloyed metal.
Cupellation process is used in the metallurgy of:
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Copper
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Silver
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Aluminium
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Iron
Cupellation is a process where ores are treated under high temperatures and controlled operations to separate noble metals like gold and silver, from base metals like led, copper, zinc, and others present in the ore or alloyed metal.
When alloy of silver and lead is rich in silver:
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Cupellation process is used
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Parke's method is used
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Pattinson's method is used
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Any of the above methods can be used
When alloy of silver and lead is rich in silver, cupellation process is used.
The silver metal can be obtained in when alloy of silver and lead is rich in lead is:
i) Parke's process
ii) Pattinson's process
Softening of lead means:
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Melting pure lead at high temperature
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Removal of impurities, except silver, present in commercial lead
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Formation of lead alloy
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Formation of 100% pure lead
We know the melting point of pure lead is very high. Softening of lead means removal of metallic impurities, except silver, present in the commercial lead.
Tin is not refined by:
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Liquidation
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Zone refining
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Poling
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None of the above
When alloy of silver and lead is rich in silver :
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CupelIation process is used
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Parke's method is used
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Bett's method is used
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All of the above method
Refining of tin can be done by :
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cupellation
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liquation
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poling
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electrorefining