Graduate Pharmacy Aptitude Test (GPAT) 2012 Solved Paper

There are some criteria which an ideal antacid should fulfill. Some of them given below:
[P] : The antacidshould be absorbable orally and should buffer in the pH range of 4 - 6
[Q]: The antacid should exert its effect rapidly and should not cause a large evolution of gas
[R] : The antacid should not be a laxative or should not cause constipation
[S] : The antacid should react with the gastric acid and should inhibit pepsin Choose the correct combination of criteria for an ideal antacid.