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Questions and Answers
Which term refers to the process of heating a substance to a high temperature in the presence of air to convert it into an oxide?
Which term refers to the process of heating a substance to a high temperature in the presence of air to convert it into an oxide?
- Roasting (correct)
- Refining
- Calcination
- Benefaction
Which term refers to the process of heating a substance to a high temperature in the absence of air to remove volatile impurities?
Which term refers to the process of heating a substance to a high temperature in the absence of air to remove volatile impurities?
- Refining
- Benefaction
- Calcination (correct)
- Roasting
Which term refers to the process of purifying a metal by removing impurities through various techniques?
Which term refers to the process of purifying a metal by removing impurities through various techniques?
- Calcination
- Refining (correct)
- Benefaction
- Roasting
Which term refers to the process of removing impurities from an ore to increase its metal content?
Which term refers to the process of removing impurities from an ore to increase its metal content?
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Why is reduction of certain oxides like Cu2O easier than that of Fe2O3?
Why is reduction of certain oxides like Cu2O easier than that of Fe2O3?
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