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Potassium permanganate is colored because it absorbs light in the visible range of the electromagnetic spectrum. The permanganate ion is the source of the color, as a ligand-to-metal charge transfer takes place between the oxygen's p orbitals and the empty d-orbitals on the metal. This charge transfer takes place when a photon of light is absorbed, which leads to the purple color of the compound.
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Why first colour changes when KMnO4 is added to ethanol and colour reappears when excess of KMno4 is added?
When KMnO4 is added to ethanol, it gets reduced to MnO2, causing the initial color change. However, when excess KMnO4 is added, MnO2 gets further oxidized back to KMnO4, resulting in the reappearance of the original color. This demonstrates the redox nature of the reaction between KMnO4 and ethanol.
What are kmno4?
acidicness number of kmno4
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
What does KMnO4 stands for?
It stands for Potassium Permanganate and is usually used to control color, taste, and odors.
What is Valency of k in kmno4?
tell me about the vlance of Mn in KMnO4
What changes in color occur when bromine or KMnO4 reacts with an alkene?
The purple KMnO4 is decolourise
What colour change occurs when h2o2 is added to kmno4?
When hydrogen peroxide (H2O2) is added to potassium permanganate (KMnO4), the purple color of KMnO4 solution fades, turning into a colorless solution. This color change indicates the reduction of KMnO4 to Mn2+ ions.
What is the product when ethanol react with excess acidified kmno4?
When ethanol reacts with excess acidified KMnO4, it is oxidized to form ethanoic acid. The purple color of KMnO4 is decolorized to colorless Mn2+ ions during the reaction.
What are the formula molar mass and color of potassium permanganate?
molar mass is 158.03 g/mol color is purple chemical formula is KMnO4
What element is responsible for the purple color in KMnO4?
Manganese (Mn) is responsible for the purple color in KMnO4. When potassium permanganate is dissolved in water, it dissociates into potassium ions and manganese ions, giving the solution its distinct purple hue.
Chemical symbol for permanganate?
The formula for potassium permanganate is KMnO4
Why first colour changes when KMnO4 is added to ethanol and colour reappears when excess of KMno4 is added?
When KMnO4 is added to ethanol, it gets reduced to MnO2, causing the initial color change. However, when excess KMnO4 is added, MnO2 gets further oxidized back to KMnO4, resulting in the reappearance of the original color. This demonstrates the redox nature of the reaction between KMnO4 and ethanol.
What will happen when CO2 is washed with kmno4 water?
When carbon dioxide (CO2) is washed with potassium permanganate (KMnO4) water, the KMnO4 will be reduced by the CO2 to form a brown precipitate of manganese dioxide (MnO2). This reaction can be used to determine the presence of CO2 in a gas sample by observing the color change from purple (KMnO4) to brown (MnO2).
Can solutions have color?
Yes. For instance a solution of KMnO4 (Potassium Permanganate) in H2O (Water) is purple.
What happens when toluene is treated with alkaline KMnO4?
When toluene is treated with alkaline KMnO4, it undergoes oxidation. Toluene is converted to benzyl alcohol, and further oxidation can convert benzyl alcohol to benzoic acid. The purple color of the KMnO4 solution will fade as the reaction proceeds.
What are kmno4?
acidicness number of kmno4
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
