Experiment No. 20
Question: How can you discover if food contains Vitamin C?
Experiments: To test for Vitamin C.
You will need:
four samples of different juices or drinks,
test tube rack,
five test tubes,
1. We placed some DCPIP
solution into one test tube.
2. We placed four different drink samples into four different test tubes.
3. We then placed DCPIP solution into the pipette (enough for five-six drops)
4. We then added approximately 5 drops of DCPIP to each drink sample, in each test tube.
5. Then we waited and observed the DCPIP solution.
6. We recorded the results.
|Observations:||The DCPIP changed from a blue colour to a clear colour.||The DCPIP blue colour disappeared.||The DCPIP blue colour remained.||The DCPIP blue colour disappeared.|
1. If the blue colour of
the DCPIP disappears then vitamin C is present.
2. The water contained no vitamin C and so did not change the colour of the DCPIP.
Sixth Class Experiments