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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?

In this reaction, potassium permanganate (KMnO4) acts as the oxidizing agent. It oxidizes oxalic acid (H2C2O4) to carbon dioxide and sulfuric acid (H2SO4) helps to provide the acidic conditions needed for the reaction to occur.


What happen when ethanol is heated with alkaline kmno4 solution?

When ethanol is heated with alkaline potassium permanganate (KMnO4) solution, it undergoes oxidation to form ethanoic acid. The purple color of the KMnO4 solution will fade as it is reduced to colorless Mn2+ ions. This reaction is a common test for the presence of alcohol functional groups in organic compounds.


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?

a) KMnO4 is potassium permanganate, an inorganic compound used as an oxidizing agent. b) KBr is potassium bromide, a salt used in photographic chemicals and as a sedative in medicine. c) H2SO4 is sulfuric acid, a strong mineral acid used in various industrial processes. d) NaOH is sodium hydroxide, a strong base used in manufacturing paper, textiles, and cleaning products.


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

The color of potassium permanganate does not disappear when excess ethanol is added because ethanol cannot fully reduce potassium permanganate. While ethanol can partially reduce potassium permanganate to form manganese dioxide, the color remains because there is still some potassium permanganate present in the solution.


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

In the titration of FeCl2 with KMnO4 in the presence of H2SO4, iron(II) ions (from FeCl2) are oxidized to iron(III) ions by the permanganate ions from KMnO4. The balanced chemical equation is: 5Fe^2+ + MnO4^- + 8H^+ ---> 5Fe^3+ + Mn^2+ + 4H2O


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?

In the titration of KMnO4, no indicator is used because KMnO4 is a self-indicating titrant. It undergoes a color change from purple to colorless (or brown) at the endpoint of the titration, which makes it unnecessary to add an external indicator. The precise endpoint can be easily detected visually, making the use of an indicator redundant.


Why KMnO4 titration's are carried out only in the presence of dilute H2SO4?

KMnO4 titrations are carried out in the presence of dilute H2SO4 to provide the acidic conditions required for the reduction of MnO4- to Mn2+. This reaction is crucial for the titration process to accurately determine the amount of analyte present. Additionally, H2SO4 serves to stabilize the Mn2+ ions formed during the titration.


What is Kno3 plus h2co3 k2co3 plus hno3?

The reaction between KNO3 (potassium nitrate) and H2CO3 (carbonic acid) would not produce K2CO3 (potassium carbonate) and HNO3 (nitric acid). This is not a balanced chemical equation. The correct reaction between potassium nitrate and carbonic acid would involve a double displacement reaction, yielding nitric acid and potassium carbonate.


Make the solution of KMnO4 IN 1M?

by adding 158.0g in 1 liter water.