Iodine solution turned blue black when poured on a potato slice because it contains:

Fat

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Oil

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Starch

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Protein

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Solution

The correct option is C
Starch

The presence of starch can be detected using an iodine test. When two or three drops of iodine solution are added to the substance containing starch, the solution turns dark blue. This shows the presence of starch.

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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

Adding iodine solution on a cut potato turns it dark blue in color. Why is this so?

Q. The color of the iodine solution turns blue-black when it is added to a slice of bread. This indicates that the bread is rich in:

Q. Rice is a rich source of starch and iodine gives blue black colour with starch. If you add iodine solution to chewed rice what colour will it give?

Q. On reaction with iodine starch turns blue black, why ?

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Iodine solution turned blue black when poured on a potato slice because it contains:

The correct option is C Starch The presence of starch can be detected using an iodine test. When two or three drops of iodine solution are added to the substance containing starch, the solution turns dark blue. This shows the presence of starch.

The correct option is C
Starch

The presence of starch can be detected using an iodine test. When two or three drops of iodine solution are added to the substance containing starch, the solution turns dark blue. This shows the presence of starch.