Question

Antacids work to relieve stomach acids because of which of the following types of reactions?

A) decomposition
B) double-displacement
C) synthesis
D) single-displacement

Answer 1

Answer: The correct answer is Option B.

Step-by-step explanation:

Decomposition is a type of chemical reaction in which larger compound breaks down into two or more smaller compounds.

`AB\rightarrow A+B`

Double displacement reactions is defined as the chemical reaction in which exchange of ions takes place.

`AB+CD\rightarrow AD+CB`

Synthesis reaction is a type of reaction in which two or more smaller compounds combines to form a single large compound.

`A+B\rightarrow AB`

Single displacement reaction is a type of reaction in which a more reactive metal displaces a less reactive metal from its chemical reaction.

`A+BC\rightarrow AC+B`

In stomach, an acid is present known as hydrochloric acid and to neutralize its effect, antacid is taken which has
`CaCO_` as a component.

The reaction between HCl and
`CaCO_3` is a type of neutralization reaction and it is a type of double displacement reaction.

The equation between the two follows:

`CaCO_3+HCl\rightarrow CaCl_2+H_2O+CO_2`

Hence, the correct answer is Option B.