In the picture below, after adding iodine, potato turns bluish black. What does this suggest?

Potato has proteins in it.

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Potato has starch in it.

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Potato has lots of enzymes which act on iodine.

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Potato has more lipids in it.

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Solution

The correct option is B
Potato has starch in it.

Iodine solution is used to detect the presence of starch in any sample. With starch, iodine turns bluish-black indicating the presence of starch in the sample. Potatoes are rich in starch and thus show a positive test with iodine.

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Similar questions

In the picture below, after adding iodine, potato turns bluish black. What does this suggest?

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Q. A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. What does this indicate?

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In the picture below, after adding iodine, potato turns bluish black. What does this suggest?

The correct option is B Potato has starch in it. Iodine solution is used to detect the presence of starch in any sample. With starch, iodine turns bluish-black indicating the presence of starch in the sample. Potatoes are rich in starch and thus show a positive test with iodine.

The correct option is B
Potato has starch in it.

Iodine solution is used to detect the presence of starch in any sample. With starch, iodine turns bluish-black indicating the presence of starch in the sample. Potatoes are rich in starch and thus show a positive test with iodine.