:Q B.Dehydrohalogenation of alkyl halides Colle BH+x Elimination strong base:KOH/ethanol 8, CHCH,ONa/CH,CH,OH EtONa, tBuOK/tBuOH EtOH KOH EtOH tBuOK. BuOH preferred for 1 RXCollege B. Dehydrohalogenation of alkyl halides of Science C H C X + B C C + BH + X strong base: K O H/ethanol CH 3CH 2ONa/CH 3CH 2OH tBuOK/ tBuOH Br E tONa Et O H Cl KO H Et O H Cl tBu O K tBu O H Elimination preferred for 1º RX