Question

Drops of iodine were placed on some food items.No change o color is
observed whereas some show blue-black color. Can you explain

Answer 1

Answer:HEY MATE

when drops of iodine are placed in some food items ..

1. no change- that means the food item doesn't contain starch

2. colour change to blue and black- this simplifies that the food item  contains starch..the amount can be classified how dark the colour is..

Explanation: HOPE IT HELPS YOU

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Answer 2

Answer:

if we drop of iodine put on food and no change in colour so it's means that food have no starch

if food show blue or black in colour after the drop of iodine it's means food have starch. ex: potato