BI-152
Food tests
Biology · Secondary 3 · Easy · Food tests
In a food test, 2 cm³ of egg white solution is mixed with 2 cm³ of biuret solution.
Which observation shows a positive result for protein?
Which observation shows a positive result for protein?
- Solution remains blue.
- Solution turns brick‑red.
- Solution turns violet.
- Solution turns cloudy white.
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