<prompt> Porphobilinogen in urine produces pink colour with-Fouchets reagentBenedicts reagentSodium nitroprussideEhrlichs aldehyde reagent  <response>: Ehrlichs aldehyde reagent test is used for porphobilinogen and urobilinogen in urine. It is mainly used in acute intermittent porphyria.About other optionsSodium nitroprusside Rotheras test For ketone bodiesBenedicts test Glucose and other reducing sugars in urineFouchets barium sulphate test Bile pigment bilirubin 