Question

what is a substitution reaction?​

Answer 1

Answer:

Substitution reaction, any of a class of chemical reactions in which an atom, ion, or group of atoms or ions in a molecule is replaced by another atom, ion, or group.

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Answer 2

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→Substitution reaction is simply a reaction in which one of the functional group in a compound is replaced by other group.

→A reaction in which an atom replaces another atom present in a molecule undergoing the reaction.

→ In this an element replaces one or more hydrogen atoms present in a hydrocarbon.

→Example:-

• Alkanes undergo substitution reactions in which one or more hydrogen atoms of alkanes are replaced by halogens.

➖CH3Cl + Cl2  ⇒ CH2Cl2 + HCl 

➖CH2Cl2 + Cl2 ⇒ CHCl3 + HCl 

➖CHCl3 + Cl2  ⇒ CCl4 + HCl