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Starch is a complexometric indicator.
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∙ 11y ago
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What indicator tests for starch?
iodine.
What is the chemical indicator for starch and what color does starch turn in its presence?
the chemical indicator used is iodine and starch turns in dark blue colour ARE U HAPPIEE WID MA ANSWER ? THANKU
What is the function of the phenanthroline solution that is added to the unknown iron?
phenanthroline is used as a redox indicator
What color change does starch indicator solution make in the absence of starch?
light orange/ yellow
Which chemicals would be the best indicator that the unknown substance is a plant?
cellulose and starch !
What is the function of starch solution in the redox titration?
It is used as indicator for the endpoint of a Iodometric (redox) titration: it gives a bluish grey to black color with very minute excess of Iodine-iodide ions (I3-)
What chemical indicator do you use for starch?
Starch is not the indicator. Iodine is the indicator of starch.
How does litmus in the litmus milk act as a redox indicator?
Litmus milk medium is skim milk to which the dye litmus has been added. Litmus is both a pH indicator and a redox indicator. It is pink at pH < 4.5, purple in middle pH's and blue at pH > 8.3. As a redox dye, in the absence of oxygen (reduced state) it's colorless (white due to milk) and in the presence of oxygen (oxidized state) it is purple.
Why starch is used as indicator in iodometric titration?
Starch is not used in order to do this. This is because starch is able to form a complex along with the iodine and this is the indicator.
What is the role of the indicator?
indicator help us find out find out which molecules diffused and which didn't.... for example: starch indicator indicate starch......and.......glucose indicator indicate glucose.
What color does the indicator turn when starch is present?
Iodine is used to indicate whether starch is present in a solution. If starch IS present, the indicator will turn dark blue/black. Iodine is used to indicate whether starch is present in a solution. If starch IS present, the indicator will turn dark blue/black. FOR WHAT PURPOSE WE USE STARCH-IODINE INDICATOR PAPER
What is iodine an indicator for?
Starch.
What is the role of an indicator in the titration process?
indicator help us find out which molecules diffused and which didn't for ex: starch indicator indicate starch and glucose indicator indicate glucose.
Why is an indicator not used in a redox titration?
Because the endpoints are easily observed.
Why you add mercuric iodide in starch indicator preparation?
It gives an obvious color change. It's preparation is simple and easy plus it's not harmful or hazardous. When starch is mixed with iodine in water, an intensely colored starch/iodine complex is formed. The complex is very useful for indicating redox titrations that involve iodine because the color change is very sharp. It can also be used as a general redox indicator: when there is excess oxidizing agent, the complex is blue; when there is excess reducing agent the color disappears.
What is the structure of the starch indicator?
mixture......................
What indicator tests for starch?
iodine.
