Unit 4 · Biological Molecules

Question Bank

Cambridge IGCSE Biology 0610 · 52 questions

Q6Biological Molecules

A positive result for fat in the ethanol emulsion test is:

(a)Purple colour

(b)Blue-black colour

(c)Brick-red precipitate

(d)Cloudy white emulsion

Correct answer: (d) Cloudy white emulsion

Explanation: Fats dissolve in ethanol and form a milky emulsion when water is added.

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