BI-1363
Food tests
Biology · Secondary 4 · Medium · Food tests
A student tests a food sample for the presence of reducing sugar using Benedict’s solution. She adds Benedict’s solution to the sample and heats it in a hot water bath.
Which observation shows that reducing sugar is present?
Which observation shows that reducing sugar is present?
- A brick-red precipitate forms from a blue solution.
- The solution remains blue with no precipitate.
- The solution turns blue-black.
- A violet colour appears with no heating.
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