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Using iodine solution, Biuret test, Benedict reagents and ethanol, respectively in testing for reducing sugars,...

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?

A.
Blue → black → blue → brown → clear
B.
Brown → blue → brick red → clear
C.
Brown → violet → blue → clear
D.
Brown → blue → violet → milky?
In Biology
2 Answers Available
Asked by lekan02 on 11th March, 2018
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WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709