A student carried out two tests on a liquid. When Benedict’s solution was added to half of the liquid and heated, it turned red. When biuret reagent was added to the rest of the liquid, it turned mauve (purple).
Which conclusion is correct?
1 )
The liquid contained solutions of lipids and glucose.
2 )
The liquid contained solutions of lipids and protein.
3 )
The liquid contained solutions of starch and glucose.
The liquid contained solutions of glucose and protein.
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