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Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcanthite (CuSO4.5H2O), atacamite (Cu2CI(OH)3), cuprite (Cu2O), copper glance (Cu2S) and malachite (Cu2(OH)2CO3). However, 80% of the world copper production comes from the ore chalcopyrite (CuFeS2). The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction.
Q.
In self-reduction, the reducing agent is
- a)S
- b)O2-
- c)S2-
- d)SO2
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
Copper is the most noble of the first row transition metals and occurs...
Cu2S + 2Cu2O → 6Cu + SO2
lnCu2S, sulphur is S2- and in SO2, sulphur is in +4 state.
Hence, S2- is acting as reducing agent.
lnCu2S, sulphur is S2- and in SO2, sulphur is in +4 state.
Hence, S2- is acting as reducing agent.
Most Upvoted Answer
Copper is the most noble of the first row transition metals and occurs...
Self-reduction in the extraction of copper from chalcopyrite:
In the extraction of copper from chalcopyrite, self-reduction is a crucial step that involves the following key points:
- Definition: Self-reduction is a process where a metal is extracted from its ore by heating the ore in the absence of air or any other oxidizing agent. The metal oxide present in the ore is reduced to the metal by its own constituent.
- Role of the reducing agent: In the case of extracting copper from chalcopyrite, the reducing agent is sulfur (S) present in the chalcopyrite ore. When the chalcopyrite ore is heated in the absence of air, sulfur reacts with oxygen atoms in copper oxide (Cu2O) to form sulfur dioxide (SO2) gas. This reaction leads to the reduction of copper oxide to copper metal.
- Chemical reaction: The self-reduction of copper oxide in chalcopyrite can be represented by the following chemical equation:
Cu2O + 2S → 2Cu + SO2
- Significance: Self-reduction is an important step in the extraction of copper from chalcopyrite as it helps in converting copper oxide to pure copper metal without the need for external reducing agents. This process is cost-effective and environmentally friendly compared to other extraction methods.
In conclusion, self-reduction plays a vital role in the extraction of copper from chalcopyrite by utilizing sulfur as a reducing agent to convert copper oxide to copper metal.
In the extraction of copper from chalcopyrite, self-reduction is a crucial step that involves the following key points:
- Definition: Self-reduction is a process where a metal is extracted from its ore by heating the ore in the absence of air or any other oxidizing agent. The metal oxide present in the ore is reduced to the metal by its own constituent.
- Role of the reducing agent: In the case of extracting copper from chalcopyrite, the reducing agent is sulfur (S) present in the chalcopyrite ore. When the chalcopyrite ore is heated in the absence of air, sulfur reacts with oxygen atoms in copper oxide (Cu2O) to form sulfur dioxide (SO2) gas. This reaction leads to the reduction of copper oxide to copper metal.
- Chemical reaction: The self-reduction of copper oxide in chalcopyrite can be represented by the following chemical equation:
Cu2O + 2S → 2Cu + SO2
- Significance: Self-reduction is an important step in the extraction of copper from chalcopyrite as it helps in converting copper oxide to pure copper metal without the need for external reducing agents. This process is cost-effective and environmentally friendly compared to other extraction methods.
In conclusion, self-reduction plays a vital role in the extraction of copper from chalcopyrite by utilizing sulfur as a reducing agent to convert copper oxide to copper metal.
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Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcanthite (CuSO4.5H2O), atacamite (Cu2CI(OH)3), cuprite (Cu2O), copper glance (Cu2S) and malachite (Cu2(OH)2CO3). However, 80% of the world copper production comes from the ore chalcopyrite (CuFeS2). The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction.Q.In self-reduction, the reducing agentisa)Sb)O2-c)S2-d)SO2Correct answer is option 'C'. Can you explain this answer?
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Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcanthite (CuSO4.5H2O), atacamite (Cu2CI(OH)3), cuprite (Cu2O), copper glance (Cu2S) and malachite (Cu2(OH)2CO3). However, 80% of the world copper production comes from the ore chalcopyrite (CuFeS2). The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction.Q.In self-reduction, the reducing agentisa)Sb)O2-c)S2-d)SO2Correct 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 Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcanthite (CuSO4.5H2O), atacamite (Cu2CI(OH)3), cuprite (Cu2O), copper glance (Cu2S) and malachite (Cu2(OH)2CO3). However, 80% of the world copper production comes from the ore chalcopyrite (CuFeS2). The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction.Q.In self-reduction, the reducing agentisa)Sb)O2-c)S2-d)SO2Correct 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 Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcanthite (CuSO4.5H2O), atacamite (Cu2CI(OH)3), cuprite (Cu2O), copper glance (Cu2S) and malachite (Cu2(OH)2CO3). However, 80% of the world copper production comes from the ore chalcopyrite (CuFeS2). The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction.Q.In self-reduction, the reducing agentisa)Sb)O2-c)S2-d)SO2Correct answer is option 'C'. Can you explain this answer?.
Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcanthite (CuSO4.5H2O), atacamite (Cu2CI(OH)3), cuprite (Cu2O), copper glance (Cu2S) and malachite (Cu2(OH)2CO3). However, 80% of the world copper production comes from the ore chalcopyrite (CuFeS2). The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction.Q.In self-reduction, the reducing agentisa)Sb)O2-c)S2-d)SO2Correct 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 Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcanthite (CuSO4.5H2O), atacamite (Cu2CI(OH)3), cuprite (Cu2O), copper glance (Cu2S) and malachite (Cu2(OH)2CO3). However, 80% of the world copper production comes from the ore chalcopyrite (CuFeS2). The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction.Q.In self-reduction, the reducing agentisa)Sb)O2-c)S2-d)SO2Correct 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 Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcanthite (CuSO4.5H2O), atacamite (Cu2CI(OH)3), cuprite (Cu2O), copper glance (Cu2S) and malachite (Cu2(OH)2CO3). However, 80% of the world copper production comes from the ore chalcopyrite (CuFeS2). The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction.Q.In self-reduction, the reducing agentisa)Sb)O2-c)S2-d)SO2Correct answer is option 'C'. Can you explain this answer?.
Solutions for Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcanthite (CuSO4.5H2O), atacamite (Cu2CI(OH)3), cuprite (Cu2O), copper glance (Cu2S) and malachite (Cu2(OH)2CO3). However, 80% of the world copper production comes from the ore chalcopyrite (CuFeS2). The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction.Q.In self-reduction, the reducing agentisa)Sb)O2-c)S2-d)SO2Correct 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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Here you can find the meaning of Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcanthite (CuSO4.5H2O), atacamite (Cu2CI(OH)3), cuprite (Cu2O), copper glance (Cu2S) and malachite (Cu2(OH)2CO3). However, 80% of the world copper production comes from the ore chalcopyrite (CuFeS2). The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction.Q.In self-reduction, the reducing agentisa)Sb)O2-c)S2-d)SO2Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcanthite (CuSO4.5H2O), atacamite (Cu2CI(OH)3), cuprite (Cu2O), copper glance (Cu2S) and malachite (Cu2(OH)2CO3). However, 80% of the world copper production comes from the ore chalcopyrite (CuFeS2). The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction.Q.In self-reduction, the reducing agentisa)Sb)O2-c)S2-d)SO2Correct answer is option 'C'. Can you explain this answer?, a detailed solution for Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcanthite (CuSO4.5H2O), atacamite (Cu2CI(OH)3), cuprite (Cu2O), copper glance (Cu2S) and malachite (Cu2(OH)2CO3). However, 80% of the world copper production comes from the ore chalcopyrite (CuFeS2). The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction.Q.In self-reduction, the reducing agentisa)Sb)O2-c)S2-d)SO2Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcanthite (CuSO4.5H2O), atacamite (Cu2CI(OH)3), cuprite (Cu2O), copper glance (Cu2S) and malachite (Cu2(OH)2CO3). However, 80% of the world copper production comes from the ore chalcopyrite (CuFeS2). The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction.Q.In self-reduction, the reducing agentisa)Sb)O2-c)S2-d)SO2Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Copper is the most noble of the first row transition metals and occurs in small deposits in several countries. Ores of copper include chalcanthite (CuSO4.5H2O), atacamite (Cu2CI(OH)3), cuprite (Cu2O), copper glance (Cu2S) and malachite (Cu2(OH)2CO3). However, 80% of the world copper production comes from the ore chalcopyrite (CuFeS2). The extraction of copper from chalcopyrite involves partial roasting, removal of iron and self-reduction.Q.In self-reduction, the reducing agentisa)Sb)O2-c)S2-d)SO2Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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