BI-1307
Food tests
Biology · Secondary 4 · Easy · Food tests
Which food test would you use to confirm the presence of reducing sugar in a solution, and what is a positive result?
- Biuret test; solution turns purple
- Benedict’s test; solution forms a brick-red precipitate
- Ethanol emulsion test; cloudy white layer forms
- Iodine test; solution turns blue-black
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