<prompt> Hypochloremia, hypokalemia and alkalosis are seen in?Congenital hyperophic pyloric stenosisHirschsprungs disease.Esophageal atresiaJejunal atresia  <response>: Ans is a i.e. Congenital hyperophic pyloric stenosis Biochemical abnormality in congenital hyperophic pyloric stenosis is a regular feature of AIIMS and AI examinations it has been repeated several times. The biochemical abnormalities seen are: I Hypokalemia 3 Alkalosis and 2 Hypochloremia 4 Paradoxical aciduria 