A purple colour was obtained when sodium hydroxide solution and a drop of copper sulphate solution were added to a food substance. The food substance is likely to be a? By: Sunday|Published on: Nov 24|Categories: Biology WAEC| 0 comments A. carbohydrate B. fat C. protein D. sugar Correct Answer: Option C C. protein Users Also Read These:What is the pH of 0.001 mol dm-³ solution of sodium…The metal used to recover copper from a solution of…During the electrolysis of copper II sulphate…To what volume must 300cm³ of 0.60M sodium hydroxide…Which of the following food substances will produce…SEE ALSO Only specially adapted micro-organisms are found in?