Question

Sonia took some grains of boiled rice in test tube ‘A’ and Madhur took chewed boiled rice in test tube ‘B’. Both of them poured 1 – 2 drops of iodine solution into the test tubes and observed the colour change. In which test tube would the colour change? Why?

Answer 1

Answer:

The colour would change in both the test tubes because rice, like all other grains, contains about 30% of starchy carbohydrates. The solution would change to a blackish-blue colour.

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Answer 2

Answer:

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