Question

boojho took some grains of boiled rice in test tube "A" and paheli took boiled and chewed rice in test tube "B". Both of them poured 1-2 drops of iodine solution into the test tube and observed the colour change would they have observed ? give reasons for your answer

Answer 1

Answer:

Boojho took some grains of boiled rice in test tube 'A' and Paheli took boiled and chewed rice in test tube 'B'. ... when the boiled and chewed rice are added to the iodine solution then the colour of iodine will not change because of digestion of starch into sugars.

Answer 2

Answer:

In test-tube A, the boiled rice contains starch. When we add 1-2 drops of iodine, the combination turns in the shade of blue-black. This indicates the presence of starch in the test tube A.

In test-tube A, the boiled rice contains starch. When we add 1-2 drops of iodine, the combination turns in the shade of blue-black. This indicates the presence of starch in the test tube A. In test-tube B, the starch of rice converts into sugar on digestion. Thus, the colour of iodine will not change.

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