JEE Main & Advanced Chemistry GOC Question Bank Organic reactions and their mechanism

  • question_answer Which of the following can?t be used in Friedal Craft?s reactions [AFMC 2004]

    A) \[FeC{{l}_{3}}\]

    B) \[FeB{{r}_{2}}\]

    C) \[AlC{{l}_{3}}\]

    D) NaCl

    Correct Answer: D

    Solution :

    All cations are expected to act as Lewis acid since they are electron deficient in nature. However cation such as \[N{{a}^{+}},\ {{K}^{+}}\] etc. (Inert gas configuration) have a very little tendency to accept electrons. Therefore they do not acts as lewis acids in friedel Craft?s reaction.

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