<prompt> In phenylketonuria FeCI test with urine gives ... colorGreenBlueRedPurple  <response>: In ferric chloride test used for detecting the presence of phenols in phenylketonuria,a drop of ferric chloride is added to the urine.Phenols present in urine,will form a complex with FeIII to give a transient green colour. Reference:Essential pediatrics-Ghai,8th edition,page no:652 