BI-30
Food tests
Biology · Secondary 3 · Medium · Food tests
A student adds Benedict’s solution to 2 cm³ of an unknown sugar solution and heats it in a boiling water bath for 3 minutes. A brick‑red precipitate forms. What does this result show?
- The solution contains protein.
- The solution contains starch.
- The solution contains a reducing sugar.
- The solution contains non‑reducing sugar only.
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