The correct answer is A. Phosphoric acid.
Phosphoric acid is a weak acid that is used in a variety of applications, including soft drinks. It is used as a souring agent to give soft drinks their tart flavor. It also helps to stabilize the carbonation in soft drinks and prevents them from going flat.
Phosphoric acid is a colorless, odorless liquid that is slightly viscous. It is soluble in water and ethanol. Phosphoric acid is a weak acid with a pKa of 2.12. It is a member of the phosphorus oxyacids family.
Phosphoric acid is produced by the reaction of phosphorus pentoxide with water. The reaction is exothermic and produces heat. Phosphoric acid is also produced by the reaction of phosphoric rock with sulfuric acid.
Phosphoric acid is used in a variety of applications, including:
- Soft drinks
- Fertilizers
- Cleaning products
- Metalworking
- Pharmaceuticals
- Food additives
Phosphoric acid is a safe and effective substance when used as directed. However, it can be harmful if ingested in large amounts. Symptoms of phosphorus acid poisoning include nausea, vomiting, diarrhea, abdominal pain,
and seizures. In severe cases, phosphorus acid poisoning can lead to death.If you are exposed to phosphorus acid, it is important to seek medical attention immediately.