<prompt> Acetyl salicylate phenobarbitone are better absorbed from stomach because they are-Weak acids remain non-ionic in gastric pHWeak acids remain ionic in gastric pHStrong acids fully ionised in gastric pHWeak bases which are ionised at gastric pH  <response>: Ans. is a i.e., Weak acids remain non-ionic at gastric pH Remember simple funda : When the medium is same drugs can cross the membrane: i Acidic drugs can cross the membrane in acidic medium, i.e., acidic drugs are unionized at acidic pH and are lipid soluble -- so, in stomach acidic drugs are absorbed. ii Basic drugs can cross the membrane in basic medium, i.e., basic drugs are unionized at alkaline pH and are lipid soluble -- so, in intestine basic drugs are absorbed. 