question_answer 1)

  In which of the following compounds the carbon marked with asterisk is expected to have greatest positive charge? (a) \[{{\,}^{*}}C{{H}_{3}}-C{{H}_{2}}-Cl\]                                                               (b) \[{{\,}^{*}}C{{H}_{3}}-C{{H}_{2}}-M{{g}^{+}}C{{l}^{-}}\] (c) \[{{\,}^{*}}C{{H}_{3}}-C{{H}_{2}}-Br\]                                                               (d) \[{{\,}^{*}}C{{H}_{3}}-C{{H}_{2}}-C{{H}_{3}}\]

Answer:

  (a) Since Cl is highly electronegative, so, (a) has the highest positive charge.