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Question

Iodine test is used to confirm the presence of

A
Fats.
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B
Proteins.
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C
Vitamins.
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D
Carbohydrates.
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Solution

The correct option is C Carbohydrates.
The iodine solution is used to detect the presence of the carbohydrates in the solution. Generally, the test is performed to detect the presence of starch which is a carbohydrate. When there is presence of starch in the sample solution, the colour of the solution turns bluish black after the addition of the iodine solution.
Thus, the correct answer is option D.

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