Question

what is substitution reaction ? give example​

Answer 1

Answer:

Reactions which involve substitution of an atom or a group of atoms in an organic molecule by another atom or a group of atoms without any change in the rest of the molecule are called substitution reactions.

Eg-    

    CH4 + Cl2 ----sunlight-------> CH3Cl  +  HCl

Answer 2

Answer:

substitution reaction is a reaction in which one hydrogen atom of a hydrocarbon is replaced by another functional group

Explanation:

example: if u take the case of methane CH4

one hydrogen is replaced by a halogen like cl,br,I