This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': "Positive Fouchet's test gives which color? \nSelect and explain. \nA. Red, B. Green, C. Violet, D. Yellow", 'role': 'user'}, {'content': "Answer: B \nExplanation: Fouchet's test : This test is also employed for\xa0the detection of\xa0bile pigments. Bile pigments are\xa0adsorbed on\xa0 barium sulfate. Fouchet's reagents\xa0(containing ferric chloride in\xa0 trichloroacetic acid)\xa0oxidizes bilirubin to biliverdin (green) and bilicyanin\xa0(blue).\nSatyanarayana, Ed 3, Pg No 767", 'role': 'assistant'}]