Question

To compare the rate of fermentation of wheat flour, gram flour, rice and potatoes

Answer 1

You want to compare but in what in tabular form .

Answer 2

Starch provides blue-violet colour reacting with the iodine while the product of the starch fermentation does not provide any colour.

While the fermentation is finished, the mixture stops providing blue-violet colour reacting with the iodine solution.

We can compare the rate of fermentation of the given samples of wheat flour, gram flour, rice and potatoes on the basis of the time taken for fermentation.

Wheat flour takes10 hours, Gram flour takes 12.5 hours, Rice flour takes15 hours and Potato takes 13 hours.