Class 12 Exam > Class 12 Questions > Which of the following activities is not rela...
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Which of the following activities is not related to poling ?
- a)Metallic impurities having higher oxidation
potential as compared to that of metal to the
refined are oxidized first - b)Non-volatile oxides are removed in he form of
scum - c)Metallic impurities having lower oxidation
potential as compared to that of metal to be
refined are oxidized settle down at the bottom of the furnace - d)Green poles of wood are used as stirrers
Correct answer is option 'C'. Can you explain this answer?
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Which of the following activities is not related to poling ?a)Metallic...
Activity not related to poling
The activity that is not related to poling is option 'C'.
Explanation
Poling is a process used in metallurgy to refine metals like copper and tin. It involves the removal of non-metallic impurities by oxidizing them and removing them as scum. The metallic impurities with lower oxidation potential settle down at the bottom of the furnace as poling bottoms. The process of poling is carried out using green poles of wood as stirrers. The impurities that are removed during poling include sulfur, arsenic, antimony, and bismuth.
Activities related to poling
The following activities are related to poling:
- Metallic impurities having higher oxidation potential as compared to that of metal to be refined are oxidized first: During poling, metallic impurities with higher oxidation potential like sulfur, arsenic, antimony, and bismuth are oxidized first. This is because they are more reactive and can be easily oxidized.
- Non-volatile oxides are removed in the form of scum: Non-volatile oxides like copper oxide, tin oxide, and lead oxide are removed as scum during poling. This is because they do not evaporate during the process and can be easily removed as scum.
- Green poles of wood are used as stirrers: Green poles of wood are used as stirrers during poling. This is because they are non-reactive and do not contaminate the metal being refined. They also help in stirring the metal and ensuring that all the impurities are oxidized and removed.
Conclusion
Poling is an important process used in metallurgy to refine metals. It involves the removal of impurities by oxidizing them and removing them as scum. The metallic impurities with lower oxidation potential settle down at the bottom of the furnace as poling bottoms. The process of poling is carried out using green poles of wood as stirrers.
The activity that is not related to poling is option 'C'.
Explanation
Poling is a process used in metallurgy to refine metals like copper and tin. It involves the removal of non-metallic impurities by oxidizing them and removing them as scum. The metallic impurities with lower oxidation potential settle down at the bottom of the furnace as poling bottoms. The process of poling is carried out using green poles of wood as stirrers. The impurities that are removed during poling include sulfur, arsenic, antimony, and bismuth.
Activities related to poling
The following activities are related to poling:
- Metallic impurities having higher oxidation potential as compared to that of metal to be refined are oxidized first: During poling, metallic impurities with higher oxidation potential like sulfur, arsenic, antimony, and bismuth are oxidized first. This is because they are more reactive and can be easily oxidized.
- Non-volatile oxides are removed in the form of scum: Non-volatile oxides like copper oxide, tin oxide, and lead oxide are removed as scum during poling. This is because they do not evaporate during the process and can be easily removed as scum.
- Green poles of wood are used as stirrers: Green poles of wood are used as stirrers during poling. This is because they are non-reactive and do not contaminate the metal being refined. They also help in stirring the metal and ensuring that all the impurities are oxidized and removed.
Conclusion
Poling is an important process used in metallurgy to refine metals. It involves the removal of impurities by oxidizing them and removing them as scum. The metallic impurities with lower oxidation potential settle down at the bottom of the furnace as poling bottoms. The process of poling is carried out using green poles of wood as stirrers.
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Which of the following activities is not related to poling ?a)Metallic impurities having higher oxidationpotential as compared to that of metal to therefined are oxidized firstb)Non-volatile oxides are removed in he form ofscumc)Metallic impurities having lower oxidationpotential as compared to that of metal to berefined are oxidized settle down at the bottom of the furnaced)Green poles of wood are used as stirrersCorrect answer is option 'C'. Can you explain this answer?
Question Description
Which of the following activities is not related to poling ?a)Metallic impurities having higher oxidationpotential as compared to that of metal to therefined are oxidized firstb)Non-volatile oxides are removed in he form ofscumc)Metallic impurities having lower oxidationpotential as compared to that of metal to berefined are oxidized settle down at the bottom of the furnaced)Green poles of wood are used as stirrersCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Which of the following activities is not related to poling ?a)Metallic impurities having higher oxidationpotential as compared to that of metal to therefined are oxidized firstb)Non-volatile oxides are removed in he form ofscumc)Metallic impurities having lower oxidationpotential as compared to that of metal to berefined are oxidized settle down at the bottom of the furnaced)Green poles of wood are used as stirrersCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following activities is not related to poling ?a)Metallic impurities having higher oxidationpotential as compared to that of metal to therefined are oxidized firstb)Non-volatile oxides are removed in he form ofscumc)Metallic impurities having lower oxidationpotential as compared to that of metal to berefined are oxidized settle down at the bottom of the furnaced)Green poles of wood are used as stirrersCorrect answer is option 'C'. Can you explain this answer?.
Which of the following activities is not related to poling ?a)Metallic impurities having higher oxidationpotential as compared to that of metal to therefined are oxidized firstb)Non-volatile oxides are removed in he form ofscumc)Metallic impurities having lower oxidationpotential as compared to that of metal to berefined are oxidized settle down at the bottom of the furnaced)Green poles of wood are used as stirrersCorrect answer is option 'C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Which of the following activities is not related to poling ?a)Metallic impurities having higher oxidationpotential as compared to that of metal to therefined are oxidized firstb)Non-volatile oxides are removed in he form ofscumc)Metallic impurities having lower oxidationpotential as compared to that of metal to berefined are oxidized settle down at the bottom of the furnaced)Green poles of wood are used as stirrersCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following activities is not related to poling ?a)Metallic impurities having higher oxidationpotential as compared to that of metal to therefined are oxidized firstb)Non-volatile oxides are removed in he form ofscumc)Metallic impurities having lower oxidationpotential as compared to that of metal to berefined are oxidized settle down at the bottom of the furnaced)Green poles of wood are used as stirrersCorrect answer is option 'C'. Can you explain this answer?.
Solutions for Which of the following activities is not related to poling ?a)Metallic impurities having higher oxidationpotential as compared to that of metal to therefined are oxidized firstb)Non-volatile oxides are removed in he form ofscumc)Metallic impurities having lower oxidationpotential as compared to that of metal to berefined are oxidized settle down at the bottom of the furnaced)Green poles of wood are used as stirrersCorrect answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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Which of the following activities is not related to poling ?a)Metallic impurities having higher oxidationpotential as compared to that of metal to therefined are oxidized firstb)Non-volatile oxides are removed in he form ofscumc)Metallic impurities having lower oxidationpotential as compared to that of metal to berefined are oxidized settle down at the bottom of the furnaced)Green poles of wood are used as stirrersCorrect answer is option 'C'. Can you explain this answer?, a detailed solution for Which of the following activities is not related to poling ?a)Metallic impurities having higher oxidationpotential as compared to that of metal to therefined are oxidized firstb)Non-volatile oxides are removed in he form ofscumc)Metallic impurities having lower oxidationpotential as compared to that of metal to berefined are oxidized settle down at the bottom of the furnaced)Green poles of wood are used as stirrersCorrect answer is option 'C'. Can you explain this answer? has been provided alongside types of Which of the following activities is not related to poling ?a)Metallic impurities having higher oxidationpotential as compared to that of metal to therefined are oxidized firstb)Non-volatile oxides are removed in he form ofscumc)Metallic impurities having lower oxidationpotential as compared to that of metal to berefined are oxidized settle down at the bottom of the furnaced)Green poles of wood are used as stirrersCorrect answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which of the following activities is not related to poling ?a)Metallic impurities having higher oxidationpotential as compared to that of metal to therefined are oxidized firstb)Non-volatile oxides are removed in he form ofscumc)Metallic impurities having lower oxidationpotential as compared to that of metal to berefined are oxidized settle down at the bottom of the furnaced)Green poles of wood are used as stirrersCorrect answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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