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Question

To check the presence of starch in leaves, the solution used is _______.

A
Chlorine solution
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B
Iodine solution
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C
Fluorine solution
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D
Sodium solution
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Solution

The correct option is B Iodine solution
When leaves are treated with iodine solution, they turn the colour to blue-black due to the presence of starch with iodine as an indicator.

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