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starch
Presence of starch.
Starch, alpha-carbohydrate
Iodine turns blue in the presence of starch
Iodine turns it purple in the presence of starch. :D~PiNkBuN17 Aka Aisha
does not matter once the Powder has starch it turns black and the powder can be any color
starch
Presence of starch.
Starch, alpha-carbohydrate
starch
In the presence of starch, iodine turns purple.
BlackAns2:It is very unlikely that a ripe banana will have enough starch to turn iodine black. When iodine turns black, it is a positive test for the presence of starch.
Dark blue very, near to black
Iodine turns blue in the presence of starch
Iodine turns it purple in the presence of starch. :D~PiNkBuN17 Aka Aisha
it turns the color orange green and black + hard and became sticky.
because photosynthesis has occured in the leaf. starch is produced and turns iodine blue-black indicating the presence of starch.