<prompt> Paradoxical Aciduria is seen -Congenital Hypertrophic Pyloric StenosisDuodenal UlcerAchalsia CardiaCrohns Disease  <response>: Ans. is a i.e., Congenital Hypertrophic Pyloric Stenosis o Biochemical abnormality in congenital hypertrophic pyloric stenosis is a regular feature of AIIMS and AI examinations it has been repeated several times, o The biochemical abnormalities seen are:1. Hypokalemia2. Hypochloremia3. Alkalosis and4. Paradoxical aciduria 