Class 10 Exam > Class 10 Questions > Statement A:Oxyacetylene flame is used for we...
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Statement A: Oxyacetylene flame is used for welding purposes.
Statement B: Ethyne reacts with HCl in the presence of HgCl2 to form vinyl chloride.
- a)Statement B is true; Statement A is false.
- b)Statement A is true; Statement B is false.
- c)Both the statements A and B are true.
- d)Neither statement A nor statement B is true.
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
Statement A:Oxyacetylene flame is used for welding purposes.Statement ...
Oxyacetylene flame is used for welding purposes. The oxyacetylene welding process uses a combination of oxygen and acetylene (C2H2) gas to provide a high temperature flame. It is commonly used to join mild steel permanently.
Ethyne (C2H2) reacts with HCl in the presence of HgCl2 to from vinyl chloride or chloro ethane H2C=CHCl. This colorless compound is an important industrial chemical. It is chiefly used to produce polyvinyl chloride (PVC).
Most Upvoted Answer
Statement A:Oxyacetylene flame is used for welding purposes.Statement ...
Statement A: Oxyacetylene flame is used for welding purposes.
The statement A is true. Oxyacetylene flame is commonly used in welding processes. It is a type of flame produced by the combustion of a mixture of acetylene gas (C2H2) and oxygen (O2). This flame is known for its high temperature and is widely used in welding and cutting applications.
Statement B: Ethyne reacts with HCl in the presence of HgCl2 to form vinyl chloride.
The statement B is also true. Ethyne, which is commonly known as acetylene, can react with hydrogen chloride (HCl) in the presence of a catalyst, such as mercuric chloride (HgCl2), to form vinyl chloride (C2H3Cl). This reaction is an example of an addition reaction, where the hydrogen chloride molecule adds across the carbon-carbon triple bond in acetylene to form a new carbon-chlorine bond.
Explanation:
The oxyacetylene flame is produced by mixing acetylene gas and oxygen in a specific ratio and igniting the mixture. This flame has a high temperature, reaching up to 3200°C, which allows it to melt and join metal parts together during welding processes. The acetylene gas provides the fuel source, while the oxygen supports the combustion process, resulting in a highly efficient and intense flame.
On the other hand, the reaction between ethyne (acetylene) and hydrogen chloride in the presence of mercuric chloride as a catalyst leads to the formation of vinyl chloride. This reaction involves the addition of HCl across the carbon-carbon triple bond in acetylene, resulting in the formation of a new carbon-chlorine bond. Vinyl chloride is an important chemical used in the production of polyvinyl chloride (PVC), a versatile plastic material.
Therefore, both statement A and statement B are true. Oxyacetylene flame is indeed used for welding purposes, and ethyne can react with HCl in the presence of HgCl2 to form vinyl chloride.
The statement A is true. Oxyacetylene flame is commonly used in welding processes. It is a type of flame produced by the combustion of a mixture of acetylene gas (C2H2) and oxygen (O2). This flame is known for its high temperature and is widely used in welding and cutting applications.
Statement B: Ethyne reacts with HCl in the presence of HgCl2 to form vinyl chloride.
The statement B is also true. Ethyne, which is commonly known as acetylene, can react with hydrogen chloride (HCl) in the presence of a catalyst, such as mercuric chloride (HgCl2), to form vinyl chloride (C2H3Cl). This reaction is an example of an addition reaction, where the hydrogen chloride molecule adds across the carbon-carbon triple bond in acetylene to form a new carbon-chlorine bond.
Explanation:
The oxyacetylene flame is produced by mixing acetylene gas and oxygen in a specific ratio and igniting the mixture. This flame has a high temperature, reaching up to 3200°C, which allows it to melt and join metal parts together during welding processes. The acetylene gas provides the fuel source, while the oxygen supports the combustion process, resulting in a highly efficient and intense flame.
On the other hand, the reaction between ethyne (acetylene) and hydrogen chloride in the presence of mercuric chloride as a catalyst leads to the formation of vinyl chloride. This reaction involves the addition of HCl across the carbon-carbon triple bond in acetylene, resulting in the formation of a new carbon-chlorine bond. Vinyl chloride is an important chemical used in the production of polyvinyl chloride (PVC), a versatile plastic material.
Therefore, both statement A and statement B are true. Oxyacetylene flame is indeed used for welding purposes, and ethyne can react with HCl in the presence of HgCl2 to form vinyl chloride.
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Statement A:Oxyacetylene flame is used for welding purposes.Statement B:Ethyne reacts with HCl in the presence ofHgCl2 to form vinyl chloride.a)Statement B is true;Statement A is false.b)Statement A is true; Statement B is false.c)Both the statements A and B are true.d)Neither statement A nor statement B is true.Correct answer is option 'C'. Can you explain this answer?
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Statement A:Oxyacetylene flame is used for welding purposes.Statement B:Ethyne reacts with HCl in the presence ofHgCl2 to form vinyl chloride.a)Statement B is true;Statement A is false.b)Statement A is true; Statement B is false.c)Both the statements A and B are true.d)Neither statement A nor statement B is true.Correct answer is option 'C'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Statement A:Oxyacetylene flame is used for welding purposes.Statement B:Ethyne reacts with HCl in the presence ofHgCl2 to form vinyl chloride.a)Statement B is true;Statement A is false.b)Statement A is true; Statement B is false.c)Both the statements A and B are true.d)Neither statement A nor statement B is true.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Statement A:Oxyacetylene flame is used for welding purposes.Statement B:Ethyne reacts with HCl in the presence ofHgCl2 to form vinyl chloride.a)Statement B is true;Statement A is false.b)Statement A is true; Statement B is false.c)Both the statements A and B are true.d)Neither statement A nor statement B is true.Correct answer is option 'C'. Can you explain this answer?.
Statement A:Oxyacetylene flame is used for welding purposes.Statement B:Ethyne reacts with HCl in the presence ofHgCl2 to form vinyl chloride.a)Statement B is true;Statement A is false.b)Statement A is true; Statement B is false.c)Both the statements A and B are true.d)Neither statement A nor statement B is true.Correct answer is option 'C'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Statement A:Oxyacetylene flame is used for welding purposes.Statement B:Ethyne reacts with HCl in the presence ofHgCl2 to form vinyl chloride.a)Statement B is true;Statement A is false.b)Statement A is true; Statement B is false.c)Both the statements A and B are true.d)Neither statement A nor statement B is true.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Statement A:Oxyacetylene flame is used for welding purposes.Statement B:Ethyne reacts with HCl in the presence ofHgCl2 to form vinyl chloride.a)Statement B is true;Statement A is false.b)Statement A is true; Statement B is false.c)Both the statements A and B are true.d)Neither statement A nor statement B is true.Correct answer is option 'C'. Can you explain this answer?.
Solutions for Statement A:Oxyacetylene flame is used for welding purposes.Statement B:Ethyne reacts with HCl in the presence ofHgCl2 to form vinyl chloride.a)Statement B is true;Statement A is false.b)Statement A is true; Statement B is false.c)Both the statements A and B are true.d)Neither statement A nor statement B is true.Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10.
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