MPSC Rajyaseva 2015 GS Paper 1 — Question 61

पचनसंस्थेमध्ये मुख ते गुदद्वार ह्या मार्गामध्ये pH मध्ये काय बदल होत जातो ? / How does the pH change from the mouth to the anus in the digestive system ?

The pH along the alimentary canal varies: the mouth is slightly acidic to neutral, the stomach is strongly acidic due to HCl, and the small and large intestines become alkaline due to bile and pancreatic juices.