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NEET Chemistry Organic Chemistry: Some Basic Principles & Techniques / कार्बनिक रसायन : कुछ मूलभूत सिद्धांत एवं तकन Question Bank Self Evaluation Test - Organic Chemistry - Some Basic Principles & Techniques

  • question_answer
    In the following compounds
    (I) (II)
    (III) (IV)
    the order of basicity is:

    A) IV > I > III > II      

    B) III > I > IV > II

    C) II > I > III > IV      

    D) I > III > II > IV

    Correct Answer: D

    Solution :

    [d] In I the unshared pair of electrons on N always available for protonation in III due to presence of electronegative O atom the electron density on N is decreased. In II and IV resonance suppresses the basic character.


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