0
If Iodine turns black in the presence of starch what is the identity of the powder that turned black?
Wiki User
∙ 12y ago
does not matter once the Powder has starch it turns black and the powder can be any color
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Which white powder turns blue-black in iodine solution?
starch
What is the purpose for iodine test?
The Iodine test is used to test for the presence of starch.
What happens to bread when you put iodine on it?
When you pore iodine on a piece of bread, the bread will turn black. Why? Because, the iodine has a chemical reaction with the starch in the bread. This method is great to find out if a food contains starch (I suggest a potato to try next!).
Why did each of the solutions turn iodine blueblack at the start of the experiments?
Iodine is famous for testing of the presence of starch. I would assume starch is present in the solution, therefore iodine would turn blue. Originally, the colour of iodine solution is brown.
Why did the leaf turn blue black when iodine was added in the starch test?
because photosynthesis has occured in the leaf. starch is produced and turns iodine blue-black indicating the presence of starch.
What is the chemical used to test for the presence of starch?
The chemical used to test for the presence of starch is iodine.
What is the chermical you test for starch?
Starch has high affinity for Iodine and in presence of iodine crystals starch turns blue from being colourless. This the fundamental that is used for chemically identifying the starch.
Does iodine turn blue?
Iodine turns blue in the presence of starch
What are the food tests for starch?
Iodine turns blue in the presence of starch.
Which white powder turns blue-black in iodine solution?
starch
What is the purpose for iodine test?
The Iodine test is used to test for the presence of starch.
What turns color in the presence of strach?
In the presence of starch, iodine turns purple.
What type of carbohydrate does iodine identify?
Iodine test shows the presence of starch. If it goes blue/black, starch is present. If it stays brown then there is no starch.
When using iodine on a potato or corn the iodine turns black What is this evidence of?
Presence of starch.
Which white powder turns black when it touches iodine?
starch
What is used to test the presence of starch?
alcohol , iodine solution
What is iodine in the presence of when it turns black?
Starch, alpha-carbohydrate
