Question

b) Describe an experiment to test the presence of starch in a food sample​

Answer 1

Answer:

We can easily test if a fooditem contains starch. Take small quantity of the fooditems to be tested. Put 2-3 drops of iodine solution on it. ... Blue-black colour indicates thepresence of starch in the tested fooditem.

Answer 2

Answer:

The presence of starch in a given food sample can be determined using iodine solution. ... The colour of potato slice changes into dark blue-black colour on addition of iodine solution. Results and Discussion. Appearence of dark blue-black colour shows the presence of starch in potato slice.

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