Question

\[{C_3}{H_8} + C{l_2}\,\,(Light)\,\, \to \,\,{C_3}{H_7}Cl + HCl\] is an example of which of the following types of reactions
A. Substitution
B. Elimination
C. Addition
D. Rearrangement

Answer 1

Hint: The term "substitution reaction" refers to a reaction in which one chemical substance's functional group is replaced by another group, or when one atom or molecule of a compound is replaced by another atom or molecule. An illustration of a substitution reaction is the one mentioned in the question. Alkanes have halogen atoms in place of their hydrogen atoms.

Complete step-by-step answer:Before anything else we first need to know what we mean by substitution, elimination, addition and rearrangement reactions.
When one functional group in a chemical molecule is replaced by another functional group, the chemical reaction is known as a substitution reaction. In organic chemistry, substitution reactions are extremely important.
In a one- or two-step method, two substituents are removed from a molecule in an organic reaction known as an elimination reaction. The E2 reaction is the name given to the one-step mechanism, and the E1 reaction to the two-step mechanism.
In the simplest terms, an addition reaction in organic chemistry is an organic reaction in which two or more molecules combine to generate a bigger one.
A broad category of organic reactions known as "rearrangement reactions" involves rearranging a molecule's carbon skeleton to produce an isomer of the original molecule's structural makeup. These reactions are typically intramolecular because a substituent frequently switches positions from one atom to another inside the same molecule.
Now, in the given reaction we see that an alkane is reacted with chlorine i.e., chlorination is taking place in the presence and we get 1-Chloropropane. Therefore, one hydrogen atom of \[{C_3}{H_8}\] is replaced by a \[Cl\] atom from \[C{l_2}\] . Therefore, it is a substitution reaction.

Option ‘A’ is correct

Note: Any procedure or reaction that introduces chlorine into a molecule as the only element is known as Chlorination. For example, Alkene chlorination by electrophilic \[C{l_2}\] addition, electrophilic aromatic substitution chlorination of a benzene ring etc.