why do  pottassium permangnate act violently in water?

Asked by darsanasanjeev | 7th Nov, 2014, 11:34: PM

Expert Answer:

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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

Topperlearning Team.

Answered by Prachi Sawant | 10th Nov, 2014, 10:21: AM