On testing with iodine, starch turns ______ in colour.

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Solution

1. Iodine test is used to determine the presence of starch in food items
2. Add iodine to any food item and if the color of the food item changes to blue-black it shows the presence of starch.
Final answer: On testing with iodine, starch turns iodine in color.

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Similar questions

Q. A student is performing an experiment to show that sunlight is necessary for photosynthesis. In the first stage, he keeps a potted plant with green leaves in a dark place for about 3 days. Towards the end of the experiment, he boils one leaf in alcohol before using iodine for testing starch.
(a) Why is the plant kept in a dark place for about 3 days?
(b) Why is the leaf boiled in alcohol before testing for starch with iodine?

Question 8
A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains

(a) complex proteins
(b) simple proteins
(c) fats
(d) starch

Q. Why starch turns blue black with iodine ?

Q. In Iodine-starch test black colour of leaf indicates-

When iodine is added to starch solution, the solution turns ___ in colour.

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On testing with iodine, starch turns ______ in colour.

1. Iodine test is used to determine the presence of starch in food items2. Add iodine to any food item and if the color of the food item changes to blue-black it shows the presence of starch.Final answer: On testing with iodine, starch turns iodine in color.

1. Iodine test is used to determine the presence of starch in food items
2. Add iodine to any food item and if the color of the food item changes to blue-black it shows the presence of starch.
Final answer: On testing with iodine, starch turns iodine in color.