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Question
When the presence of starch is treated with iodine solution, if present, the colour changes to
When the presence of starch is treated with iodine solution, if present, the colour changes to
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Solution
The correct option is C Blue-black
When starch is mixed with iodine aqueous solution, it changes to a blue-black colour. If starch is absent, the brown colour of the solution will persist.Presence of amylose in starch that forms a dark blue colour with iodine.So, option C " Blue-Black" is the correct answer.
When starch is mixed with iodine aqueous solution, it changes to a blue-black colour. If starch is absent, the brown colour of the solution will persist.
Presence of amylose in starch that forms a dark blue colour with iodine.
So, option C " Blue-Black" is the correct answer.
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