NURSING EXAM QUESTIONS
NUTRITION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Iodine used to detect presence of starch. It gives starch
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red colour
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green colour
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blue-black colour
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colourless appearance
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Explanation:
Detailed explanation-1: -In the presence of starch, iodine changes its color from brown to blue-black or purple. So, iodine can be used to test the presence of starch.
Detailed explanation-2: -Iodine produces a blue-black colour on reacting with starch. Starch is a complex carbohydrate found in a wide range of food, including potatoes and whole grains.
Detailed explanation-3: -Iodine element in the presence of iodide ion will give the characteristic blue-black colour with starch.
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