The pH value of gastric juice in the human stomach is about 1.8 and in the small intestine it is about 7.8. The pKa value of aspirin is 3.5. Aspirin will be:
A. Completely ionised in the small intestine and in the stomach
B. Unionised in the small intestine and in the stomach
C. Ionised in the small intestine and almost unionised in the stomach
D. Ionised in the stomach and almost unionised in the small intestine
