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Assertion (A): Cu powder is used in Sandmeyer's reaction. Reason (R): Diazonium group is replaced by chloride or bromide by Sandmeyer's reaction.?
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Assertion (A): Cu powder is used in Sandmeyer's reaction. Reason (R): ...
Assertion (A): Cu powder is used in Sandmeyer's reaction.
The Sandmeyer reaction is a well-known method for the synthesis of aryl halides from aryl diazonium salts. In this reaction, copper powder plays a crucial role as a catalyst.
- Function of Cu Powder:
- Acts as a reducing agent.
- Facilitates the substitution of the diazonium group with halides (Cl or Br).
- Enhances the reaction efficiency.
Reason (R): Diazonium group is replaced by chloride or bromide by Sandmeyer's reaction.
The Sandmeyer reaction is specifically designed to replace the diazonium group with halides, producing aryl halides.
- Mechanism Overview:
- A diazonium salt is treated with CuX (where X is Cl or Br).
- The diazonium group (–N2+) is displaced.
- The substitution results in the formation of aryl halides.
- Key Products:
- When reacted with CuCl, the product is aryl chloride.
- When reacted with CuBr, the product is aryl bromide.
Conclusion
Both the assertion and reason are correct and interconnected. The use of Cu powder is essential for the successful execution of the Sandmeyer reaction, leading to the replacement of the diazonium group with halides, thus forming aryl halides efficiently. This reaction is significant in organic synthesis for developing various aromatic compounds.
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Assertion (A): Cu powder is used in Sandmeyer's reaction. Reason (R): Diazonium group is replaced by chloride or bromide by Sandmeyer's reaction.?
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Assertion (A): Cu powder is used in Sandmeyer's reaction. Reason (R): Diazonium group is replaced by chloride or bromide by Sandmeyer's reaction.? 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 Assertion (A): Cu powder is used in Sandmeyer's reaction. Reason (R): Diazonium group is replaced by chloride or bromide by Sandmeyer's reaction.? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion (A): Cu powder is used in Sandmeyer's reaction. Reason (R): Diazonium group is replaced by chloride or bromide by Sandmeyer's reaction.?.
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