A solution gives a blue colour with Benedict's after heating and stays orange-brown with iodine. It contains

  1. both reducing sugar and starch
  2. reducing sugar only
  3. starch only
  4. neither reducing sugar nor starch
Answer

D) neither reducing sugar nor starch

Both tests are negative. O Level Biology · Topic 4 Biological Molecules · 4.1 Biological molecules

Biology MCQ · More O Level Biology: Biological Molecules MCQs · Practise