Why do we say that Sudan III is an indicator solution for lipids?
Answer (2)
If Sudan III is added and a lipid is present, you would expect to see a red-stained oil layer on the surface
Sudan III is an indicator solution for lipids because it binds to fat molecules, rendering them visible as a red-stained layer when present. This ability to interact specifically with lipids makes it useful in testing for fats in various samples. The presence of a red color in the solution indicates a positive result for lipids.
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