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What does a blue-black color indicate in the iodine test for starch?
- a)Absence of starch
- b)Presence of protein
- c)Presence of fats
- d)Presence of starch
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
What does a blue-black color indicate in the iodine test for starch?a)...
In the iodine test for starch, a blue-black color indicates the presence of starch in the tested food item. Iodine reacts with the starch molecules, forming a characteristic blue-black complex. This test is commonly used to detect the presence of starch in various food samples.
Most Upvoted Answer
What does a blue-black color indicate in the iodine test for starch?a)...
I can explain this answer - in iodine KI test
blue and black indicates the presence of starch in the selected item. A blue -black colour results if starch is present. if starch is not present, then the color will stay orange or yellow.
blue and black indicates the presence of starch in the selected item. A blue -black colour results if starch is present. if starch is not present, then the color will stay orange or yellow.
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Community Answer
What does a blue-black color indicate in the iodine test for starch?a)...
Explanation:
Blue-black color in the iodine test for starch indicates the presence of starch.
- When iodine comes in contact with starch, it forms a dark blue-black complex known as the starch-iodine complex.
- This color change is a characteristic reaction that is used to detect the presence of starch in a sample.
- The blue-black color indicates that starch is present in the substance being tested.
- In the absence of starch, the iodine solution remains its original color, which is typically brown or yellow.
- Therefore, a blue-black color in the iodine test is a positive result for the presence of starch.
Blue-black color in the iodine test for starch indicates the presence of starch.
- When iodine comes in contact with starch, it forms a dark blue-black complex known as the starch-iodine complex.
- This color change is a characteristic reaction that is used to detect the presence of starch in a sample.
- The blue-black color indicates that starch is present in the substance being tested.
- In the absence of starch, the iodine solution remains its original color, which is typically brown or yellow.
- Therefore, a blue-black color in the iodine test is a positive result for the presence of starch.
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What does a blue-black color indicate in the iodine test for starch?a)Absence of starchb)Presence of proteinc)Presence of fatsd)Presence of starchCorrect answer is option 'D'. Can you explain this answer?
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