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. What colour change would
they have observed? Give reasons for your answer.
NCERT Class VIII
Science - Exemplar Problems
Chapter 2. Nutrition in Animals