Question

differentiate between addition reaction and substitution reaction shown by hydrocarbons.

Answer 1

Addition reactions, substitution reactions, and elimination reactions are fundamental reactions in organic chemistry. Most chemical synthesis and identifications are based on these reactions. These reactions can occur in either one step or two steps. The main difference between addition and substitution reactions is that addition reactions involve the combination of two or more atoms or functional groupswhereas substitution reactions involve the displacement of an atom or a functional group by another functional group. 

Answer 2

unsaturated compounds undergo addition reaction while saturated undergo substitution reaction