Which food test gives a brick-red precipitate when heated with Benedict's solution?

Answer and explanation

Correct answer: B. Reducing sugars such as glucose

  1. Step 1: Benedict's solution is blue. Step 2. It turns brick red when heated with reducing sugars. Answer: Reducing sugars such as glucose. Why not the others: Starch gives blue-black with iodine, protein gives purple with biuret.

Practise more Organisation, Digestion and Circulation.

Free questions with an explanation for every one, and full timed UK GCSE mock tests.