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Why first colour changes when KMnO4 is added to ethanol and colour reappears when excess of KMno4 is added?
Wiki User
∙ 12y ago
initially it decolorizes bcoz it acts as oxidising agent so converts alcohol into acetic acid. later no change is found in KMnO4
bcoz all alcool is already cnverted into acetic acid.
Wiki User
∙ 12y ago
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You react 25.0 liters of oxygen gas at stp with 50.0 ml of ethanol liquid ethanol has a density of 0.789 gml the excess reactant is?
The question is not clear , if it is for the combustion of ethanol then 25litre of oxygen is in large excess for 25 ml of ethanol.
How do you remove excess urea in the body?
Urea is soluble in ethanol.
How plant is destarching?
A plant is destarched by placing a leaf under investigation in boiling water to get rid of all the excess starch. Then place into boiling ethanol to get rid of excess chlorophyll
Is iodine and ethanol a heterogeneous or a homogeneous?
Iodine is much more soluble in ethanol than in water, so it will usually form a homogeneous mixture. Of course, if you add more solid iodine than will dissolve in your quantity of ethanol at the temperature at which you are working, the excess solid will sink to the bottom. In that case, you have a heterogeneous mixture.
Is iodine and water heterogeneous mixture?
Iodine is much more soluble in ethanol than in water, so it will usually form a homogeneous mixture. Of course, if you add more solid iodine than will dissolve in your quantity of ethanol at the temperature at which you are working, the excess solid will sink to the bottom. In that case, you have a heterogeneous mixture.
Does the colour of potassium permanganate persist when it is added initialy to heated 3ml of ethanol?
When potassium permagnate is added initially to ethanol, ethanol gets oxidised into ethanoic acid using potassium permagnate. Thus, decolorizing potassium permagnate. When excess is added , the color of potassium permagnate persists.
You react 25.0 liters of oxygen gas at stp with 50.0 ml of ethanol liquid ethanol has a density of 0.789 gml the excess reactant is?
The question is not clear , if it is for the combustion of ethanol then 25litre of oxygen is in large excess for 25 ml of ethanol.
Is citric acid solubility in ethanol?
Yes, citric acid neutralizes the severity of ethanol when it's consumed in excess.
How do convert ethanol to chloroform?
By the action of NaOH and Cl2 (in excess).
Why the color of potassium perpanganate disappears if it is added to warm solution of ethanol?
When potassium permanganate reacts with ethanol, it releases oxygen. ie, an atom of oxygen thus converting the ethanol to acetic acid. Initially colour disappears because coloured permanganate ions of potassium permanganate are consumed to oxidise ethanol. C 2 H 5 OH (WITH ALKALINE KMnO 4) CH 3 COOH+H 2 O Remember :When excess is added colour does not change because there is no more alcohol left and hence there is no reaction.
Can excess extra neutral alcohol sediment in water?
Ethanol and water are miscible.
What makes you drunk in beer?
Ethanol is the substance that, if consumed in excess, can cause intoxication.
How do you remove excess urea in the body?
Urea is soluble in ethanol.
What is the colour given by excess lithium in lithium chloride?
yellow
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.
How plant is destarching?
A plant is destarched by placing a leaf under investigation in boiling water to get rid of all the excess starch. Then place into boiling ethanol to get rid of excess chlorophyll
What colour flame would indicate ethane burning in excess oxygen?
orange
