A glucose solution and a starch solution were mixed together inside a length of dialysis (Visking) tubing, and the tubing was tied shut. The sealed tubing was then put into a boiling tube containing distilled water. Two samples were taken straight away from this water (time 0 minutes) and tested using either iodine solution or Benedict’s solution. The test was then carried out again at 10 minute intervals for 30 minutes. Each time, the iodine solution produced an orange-brown colour. The table gives the outcomes of the Benedict’s test. What conclusion can be drawn from these results?
- A1, 2 and 3
- B1 and 2 only
- C1 and 3 only
- D2 and 3 only