Question

The solution used to test the presence of starch is ______ (iodine/lime water)

Answer 1

Starch test in plants:

1. Starch is present in the leaves of a plant as a food reserve.
2. It can be tested using iodine solution.
3. Iodine solution is generally brownish colored, and it turns purple in the presence of starch.
4. If starch is absent, the color of the iodine will not change.
5. Lime water is used to test the presence of carbon dioxide.
6. Lime water turns milky in the presence of carbon dioxide.

Final answer: The solution used to test the presence of starch is Iodine.