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12th Class Chemistry Sample Paper Chemistry Sample Test Paper-6

  • question_answer
      Write the mechanism of the reaction of HI with methoxymethane.                                                                         [2]

    Answer:

      Step I In this step ether is protonated.                 [1] Step II Iodide () is a good nucleophile. It attacks alkyl group of oxonium ion formed in step I and displaces alcohol by  mechanism. If HI is in excess, alcohol formed further reacts with HI forming                                     [1]


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