Answer: Option (D) is the correct answer.
Explanation:
A synthesis reaction is defined as the reaction in which two molecules or atoms combine together to result in the formation of a compound.
For example, [tex]Sodium + Chloride \rightarrow \text{Sodium chloride}[/tex], is a synthesis reaction.
Decomposition reaction is a reaction in which a reactant or substance breaks into two or more substances.
For example, [tex]\text{Sodium chloride} \rightarrow Sodium + Chloride[/tex], is a decomposition reaction.
In a single replacement reaction, an element replaces one atom from a compound.
For example, [tex]Zn+ CuCl_{2} \rightarrow ZnCl_{2} + Cu[/tex]
Thus, we can conclude that the chemical equation [tex]sodium + chlorine \rightarrow \text{sodium chloride}[/tex] represent synthesis reaction.
