1. The problem statement, all variables and given/known data But-2-ene reacts with bromine in the presence of concentrated aqueous sodium nitrate to give the following compound CH3-C(H)(ONO2)-C(H)(Br)-CH3 Which of the following statement is correct. a.the electrophile is NO2+ b.Only 2,3-dibromobutane is formed. c.Resultant solution shows optical activity. d.Mechanism involves an initial electrophilic attack followed by nucleophilic attack 2. Relevant equations 3. The attempt at a solution I know that B is out cause you can have -Br and -OH instead of just 2-Br. C is also out because the compound can be attacked from both side(Trigonal planar) A or D is correct.D makes sense to me but isnt NO2+ a electrophile. In this case i would presume NO2+ is somehow formed which attacks OH group....If not what is the case???