Using iodine solution Biuret test Benedict reag... - WAEC Biology 2002 Question
Using iodine solution, Biuret test, Benedict reagents and ethanol, respectively in testing for reducing
sugars, which of the following trends of colour changes would be observed?
sugars, which of the following trends of colour changes would be observed?
A
Blue → black → blue → brown → clear
B
Brown → blue → brick red → clear
C
Brown → violet → blue → clear
D
Brown → blue → violet → milky
correct option: c
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