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Why KMnO4 colour disappear after adding H2SO4?

Updated: 8/21/2019
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Q: Why KMnO4 colour disappear after adding H2SO4?
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What is the oxidising agent in kmno4 h2c2o4 h2so4?

KMnO4 and H2SO4 are oxidising agents. Oxidising agents are hungry for electrons...


What happen when ethanol is heated with alkaline kmno4 solution?

When ethanol is added to alkaline KMno4 solution, the ethanol gets oxidised to ethanoic acid due to nascent oxygen. KMno4 is an oxidising agent. thus when we first add alkaline Kmno4 to ethanol, the pink colour of the Kmno4 vanishes, as it is being used up for the oxidation process. however. when all of the ethanol has been oxidised into ethanoic acid, and we keep adding Kmno4, the colour returns, as there is no more ethanol left to oxidise.


Can someone help with this chemical equation K4FeC6N6 plus KMnO4 plus H2SO4 KHSO4 plus Fe2S3?

The balanced chemical equation would be K4FeC6N6 + KMnO4 + H2SO4 = KHSO4 + Fe2SO43 + MnSO4 + HNO3 + CO2 + H2O.


What happens when zinc dust is added to an acidified solution of potassium permanganate?

KMno4 is reduced to Mn^2+ Salt and the pink colour is discharged by the nascent hydrogen produced when zinc reacts with h2so4


What chemicals can form brominea kmno4 b kbr or c h2so4 and d naoh?

Kbr


Why does the color of potassium permanganate not disappear when excess of ethanol is added to it?

KMnO4 is pink in a solution without oxidizing reagents. Adding ethanol should change it to a brown solution. If adding ethanol can not change the solution to brown, then its environment is already acidic and will not reduce.


What is formed in the titration of FeCl2 with KMnO4 with H2SO4 present?

FeCl2 + 2KMnO4 --> Fe(MnO4)2 + 2KCl


What are used to identify substances?

odour,melting/boling point,solubility in water,sooty or non- sooty flame on combusion,sodium fusion test,colour on adding KMnO4..


Why in titration of kmno4 no indicator is used?

Because KMnO4 is an internal indicator.. No need to have any indicator.. it has distinctly different colour when it is reduced


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.


What is Kno3 plus h2co3 k2co3 plus hno3?

The answer is: 4 KMnO4=2 K2O+4 MnO+5 O2


Make the solution of KMnO4 IN 1M?

by adding 158.0g in 1 liter water.