Stomach, serves as a right place due to the following reasons
(i) HCl inactivates the salivary amylase and prevents further breakdown of disaccharide carbohydrate.
(ii) It kills microorganisms and lower the pH of stomach between 1.5-2.5 (very acidic).
(iii) Pepsinogen (inactive precursor of pepsin) in presence of HCl is converted into pepsin
(principal protease of stomach).