0
Why titration of potassium permanganate is carried out in acidic medium?
Wiki User
∙ 11y ago
This is because in acidic medium kmn04 decomposes to give Mn2+ ions which impart pink colour to the solution.
The reaction being
Mno4- +8H+5e ----->Mn2+ + 4H2O
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
Why KMnO4 titration's are carried out only in the presence of dilute H2SO4?
The permanganate ion, MnO4- purple in colour. The sulfuric acid is added to create acidic conditions. In acidic conditions, the MnO4- gets reduced to Mn2+ which is colourless. Therefore, judging by the colour change, we can figure out how much of the potassium permanganate has been used.
Is potassium permanganate is acidic or alkaline in nature?
alkaline
How do you clean up stains from potassium permanganate?
use an acidic solution .... something as simple as lemon or lime juice will work
Why do permanganate titration should be done in acidic solution?
coz the oxidation state of manganese ion changes from +7 to +4. as a result Mno2 is formed which is brown in colour hence titration colour change cannot be detected
Acidified potassium permanganate reaction with toluene equation?
toluene is benzene with CH3 reacting this with KMnO4 in acidic solution will produce a benzene with a carboxylic acid (CH3 will be oxidized)
Why KMnO4 titration's are carried out only in the presence of dilute H2SO4?
The permanganate ion, MnO4- purple in colour. The sulfuric acid is added to create acidic conditions. In acidic conditions, the MnO4- gets reduced to Mn2+ which is colourless. Therefore, judging by the colour change, we can figure out how much of the potassium permanganate has been used.
Is potassium permanganate is acidic or alkaline in nature?
alkaline
How does acidic potassium permanganate react with ki?
Permanganate(purple) becomes Mn2+(pale pink) and Iodide becomes Iodine.
Is acidic or alkaline kmno4 needed for the oxidation of toluene?
Acidic conditions promote the oxidation of toluene by potassium permanganate.
Why is it preferable to oxidize potassium permanganate in acidic rather than basic media?
What are correct regarding the reaction between potassium ferrocyanide and KMnO4 in acidic solution Permanganate ion is the oxidizing agent or Oxidized?
permanganate ion is an oxidising agent and is reduced.
How do you clean up stains from potassium permanganate?
use an acidic solution .... something as simple as lemon or lime juice will work
Why do permanganate titration should be done in acidic solution?
coz the oxidation state of manganese ion changes from +7 to +4. as a result Mno2 is formed which is brown in colour hence titration colour change cannot be detected
Why hydrogen peroxide was not heated before titrated with potassium permanganate?
Well the question is not very specific, but I think you may be reffering to the boiling of water before acid-base titrations. Water is boiled previous to acid-base titrations because if left open to the atmosphere @ STP water will absorb carbon dioxide until the pH is roughly 5.5. This will obviously adversly affect the accuracy of an acid-base titration. In the permanganate titration, a redox reaction occurs in the presence of an acidic solution.
What will you get if you mix KMnO4 and KI?
Unless the solution is made acidic or basic, the two will dissolve and form a solution of potassium ions, permanganate ions and iodide ions.
Is potassium manganate and potassium permanganate the same?
Potassium manganate = K2MnO4 Potassium permanganate = KMnO4 It is important to quote the oxidation state of the compound. Potassium manganate could easily be potassium manganate (VI) as opposed to potassium manganate (VII) KMnO4 Potassium manganate (VI) K2MnO4 is a dark green compound made by fusing manganese (IV) oxide with potassium hydroxide. It is stable in basic solution In aqueous acidic solution it disproportionates to the manganate (VII) ion and manganese (IV) oxide.
Acidified potassium permanganate reaction with toluene equation?
toluene is benzene with CH3 reacting this with KMnO4 in acidic solution will produce a benzene with a carboxylic acid (CH3 will be oxidized)
