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CBSE Class 6 Answered

<div>why do &nbsp;pottassium permangnate act violently in water?</div>
Asked by darsanasanjeev | 07 Nov, 2014, 11:34: PM
Expert Answer
Dear darsanasanjeev@gmail.com

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Solution for your query,
 
Potassium permanganate is soluble in water but does not react violently with water. It reacts violently with glycerin.
 
Potassium permanganate is a strong oxidising agent when dissolved in water.

KMnO4 + H2O → MnO2 + K+ + OH- + O*
 
Potassium permanganate is a much stronger oxidizing agent than molecular oxygen (4 oxygen atoms vs. 2). By adding this to a substance which has a lot of carbon-hydrogen bonds, a similar effect to burning a match will occur.
KMnO4 + Glycerin (high concentration of C-H bonds) --> Fire + Ash + CO2 + H2O
 
Regards

Topperlearning Team.
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