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Given below are two statements:Statement I: Benzenediazonium salt is prepared by the reaction of aniline with nitrous acid at . It decomposes easily in the dry state.Statement II: Insertion of iodine into the benzene ring is difficult and hence iodobenzene is prepared through the reaction of benzenediazonium salt with .In the light of the above statements, choose the most appropriate answer from the options given below:

  1. A
    Both Statement I and Statement II are correct
  2. B
    Both Statement I and Statement II are incorrect
  3. C
    Statement I is correct but Statement II is incorrect
  4. D
    Statement I is incorrect but Statement II is correct

Solution & Step-by-step Explanation

Statement I: Benzenediazonium chloride is prepared by diazotization of aniline with and (which generates nitrous acid) at (). The salt is unstable and decomposes readily when dry. This statement is correct.Statement II: Direct iodination of benzene is reversible and requires strong oxidizing agents. A much easier path for preparing iodobenzene is the nucleophilic displacement of the diazonium group by treating the aqueous diazonium salt solution with potassium iodide (). This statement is also correct.

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Given below are two statements:Statement I: Benzenediazonium salt is prepared by the reaction of aniline with nitrous acid at . It decomposes easily in the dry state.Statement II: Insertion of iodine into the benzene ring is difficult and hence iodobenzene is prepared through the reaction of benzenediazonium salt with .In the light of the above statements, choose the most appropriate answer from the options given below:
A
Both Statement I and Statement II are correct
B
Both Statement I and Statement II are incorrect
C
Statement I is correct but Statement II is incorrect
D
Statement I is incorrect but Statement II is correct

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Diazonium SaltsHaloarenesOrganic Preparations

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