☆The teacher provided the iodine solution to the students and asked them to check the presence of starch in various substances. Seema put a few drops of iodine solution on the cut potato and noticed that its color had turned blue-black. Then he put a few drops of iodine solution on the sugar cubes and observed that its color did not change. What can be concluded from this?
1 )Sugar contains starch but potatoes do not contain starch.
2)Starch is present in both.
3 )None of them contain starch.
4 )Potato contains starch but sugar does not contain starch.
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Answer:
answer is option 4.
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Answer: The answer will be ( 4 ) Potato contains starch but sugar does not contain starch.
Explanation: The potatoes are a rich source of starch. When the potato was tested with Iodine solution by Seema, the change of color of the iodine changed to blue-black as an indication of starch presence.
When the sugar was tested with the iodine, the color did not change because there is no starch components present in the sugar cubes.
Sugar is a source of carbohydrates. Made up of carbon, hydrogen and oxygen.
Formula,
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