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Because KMnO4 is an internal indicator.. No need to have any indicator.. it has distinctly different colour when it is reduced
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∙ 12y ago
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Why is phenolphthalein used in the titration experiment?
it is used as an acid-base indicator
What is meant by External Indicator used in titration?
Indicators used outside the titration flask are termed as external indicators. A very commonly used external indicator is potassium ferricyanide
Why acid is added in KMnO4 titration?
as kmno4 acts as a strong reducing agent only in acid medium
The purpose of an indicator in a titration experiment?
The indicator is used to measure the end point of titration. Methyl red and phenolphthalein are frequently used indicators in acid-base titration. Potassium permanganate can used as a self indicator in redox titrations where applicable.
In permanganate titration's why is nitric acid not used?
Nitric acid, being a strong oxidising agent, interferes with oxidising capacity of KMnO4 hence reducing accuracy of titration.
Why KmnO4 is used as self indicator?
As we all know that the potassium permanganate (KMnO4) is the dark purple color solution ...and in titration it become colorless ....so when the titration is completed ...and the other single drop of KMnO4 solution produce pinkish colour in a beaker ...which indicate that the reaction was completed just a single drop before .. we use indicator in a a reaction in order to indicate ...but we dont used indicator in titration with KMnO4 because it also indicate us by changing its color ...colorless to pink
Why kmno4 is used to detect the amount of h202 used?
The color change with oxidation of the permangante changes from purple to clear allows the titration to be conducted without using a seperate indicator.
Why is phenolphthalein used in the titration experiment?
it is used as an acid-base indicator
What is meant by External Indicator used in titration?
Indicators used outside the titration flask are termed as external indicators. A very commonly used external indicator is potassium ferricyanide
Why acid is added in KMnO4 titration?
as kmno4 acts as a strong reducing agent only in acid medium
The purpose of an indicator in a titration experiment?
The indicator is used to measure the end point of titration. Methyl red and phenolphthalein are frequently used indicators in acid-base titration. Potassium permanganate can used as a self indicator in redox titrations where applicable.
Why is phenolphthalein is used in titration experiment?
it is used as an acid-base indicator
In permanganate titration's why is nitric acid not used?
Nitric acid, being a strong oxidising agent, interferes with oxidising capacity of KMnO4 hence reducing accuracy of titration.
Which indicator is used in titration of naoh and h2so4?
Methyl orange
Why phenolphthalein used in titration?
it acts as acid base indicator
Why HCL is not use to acidify KMnO4 soln in permanganometric titration?
It is probably because a part of the oxygen produced from the reaction of KmnO4 and HCl is used up in oxidising the HCl to Cl2 gas
What are different types of indicator used in titration?
phenolphthalein is one i know.
