The $pH$ value of gastric juice in human stomach is about 1.8 and in the small intestine it is about 7.8. The $pK_a$ value of aspirin is 3.5. Aspirin will be

Question

(a) Ionised in the small intestine and almost unionised in the stomach.

(b) Ionised in the stomach and almost unionised in the small intestine.

(c) Completely ionised in the small intestine and in the stomach.

(d) Unionised in the small intestine and in tthe stomach.