Question

Which organic bromide would undergo dehydrohalogenation to give 1-hexene as a pure alkene?

(Draw the molecule)

Answer 1

1- Bromohexane react with alcoholic KOH undergoes dehydrobromination to from 1-hexene

CH3-CH2-CH2-CH2-CH2-CH2-Br + alc KOH------> CH3-CH2-CH2-CH2-CH=CH2 + KBr + H2O

1-Bromohexane                                                   1- hexene