Akosua has observed that anytime she drinks sobolo, her stool appears dark green. On one occasion Akosua observed that her stool, which appeared dark green, turned quickly to bright red upon mixing with the perchloric acid-treated WC water. i. What about the sobolo drink (bright red) that made the stool of Akosua green? [5 marks] 

ii. Why did the stool of Akosua, which appeared green because she took sobolo drink, turn into bright red upon mixing with the acidic WC water? [5 marks] 

iii. Suggest a practical use of sobolo drink in the identification of chemicals in the science laboratory [5 marks]