Which one of the following acids is produced in human stomach?

Which one of the following acids is produced in human stomach?

Formic acid
Sulphuric acid
Nitric acid
Hydrochloric acid
This question was previously asked in
UPSC CDS-1 – 2020
The human stomach produces gastric acid, which is primarily composed of hydrochloric acid (HCl). This acid creates a highly acidic environment in the stomach (pH typically between 1.5 and 3.5), which is essential for activating the enzyme pepsin for protein digestion and killing ingested pathogens.
– Hydrochloric acid (HCl) is the main acid present in gastric juice.
– Gastric acid helps in digestion and provides protection against microorganisms.
Other components of gastric juice include pepsinogen, mucus, and intrinsic factor. Formic acid, Sulphuric acid, and Nitric acid are not naturally produced in the human stomach.