Answer: The correct answer is Option B.
Explanation:
Decomposition is a type of chemical reaction in which larger compound breaks down into two or more smaller compounds.
[tex]AB\rightarrow A+B[/tex]
Double displacement reactions is defined as the chemical reaction in which exchange of ions takes place.
[tex]AB+CD\rightarrow AD+CB[/tex]
Synthesis reaction is a type of reaction in which two or more smaller compounds combines to form a single large compound.
[tex]A+B\rightarrow AB[/tex]
Single displacement reaction is a type of reaction in which a more reactive metal displaces a less reactive metal from its chemical reaction.
[tex]A+BC\rightarrow AC+B[/tex]
In stomach, an acid is present known as hydrochloric acid and to neutralize its effect, antacid is taken which has [tex]CaCO_[/tex] as a component.
The reaction between HCl and [tex]CaCO_3[/tex] is a type of neutralization reaction and it is a type of double displacement reaction.
The equation between the two follows:
[tex]CaCO_3+HCl\rightarrow CaCl_2+H_2O+CO_2[/tex]
Hence, the correct answer is Option B.