Question

What is a dehydrohalogenation reaction?

Answer 1

1. In general, this reaction involves the synthesis reaction of alkenes to form alkyl halides.
2. The alkyl halides are usually formed as Bromo, Iodo, and sometimes Cholro, groups attached with Hydrogen.
3. The chemical reaction occurs in the presence of alcoholic potassium hydroxide.
4. The chemical reaction is represented as follows:
   ${\mathrm{C}}_2{\mathrm{H}}_5\mathrm{Br}\left(\mathrm{g}\right)+\mathrm{KOH}\left(\mathrm{s}\right)\to {\mathrm{C}}_2{\mathrm{H}}_4\left(\mathrm{g}\right)+\mathrm{KBr}\left(\mathrm{s}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)$
5. The reaction mechanism is given as-

1. The reaction where hydrogen halide is removed from the substrate is called dehydrohalogenation.