Question : Which of the following tests is used for starch detection?
Option 1: Iodine test
Option 2: Glucose test
Option 3: Salt test
Option 4: Sodium test
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Correct Answer: Iodine test
Solution : The correct answer is the Iodine test .
The iodine test is commonly used to detect the presence of starch. If starch is present, the solution will turn blue-black, indicating a positive result. This reaction occurs because iodine molecules form a complex with starch molecules, resulting in the characteristic colour change.
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