hy is HCl not used to make the medium acidic in oxidation reactions of KMnO4 in acidic medium?
Question
hy is HCl not used to make the medium acidic in oxidation reactions of KMnO4 in acidic medium?
Solution
The reason why HCl is not used to make the medium acidic in oxidation reactions of KMnO4 in acidic medium is because KMnO4 reacts with HCl to produce chlorine gas. This is an unwanted side reaction that can interfere with the main reaction and also poses a safety risk due to the toxicity of chlorine gas.
Here is the reaction:
2 KMnO4 + 16 HCl → 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
Instead, sulfuric acid (H2SO4) is commonly used to acidify the solution in these reactions because it does not react with KMnO4.
Similar Questions
The reaction between HCl and KMnO4 in an acidic medium gives the following half reactions.Oxidation half reaction: 2Cl(aq)− → Cl2(g)Reduction half reaction: MnO4(aq)− → Mn(aq)2+What should be added on the left hand side (L.H.S.) and the right hand side (R.H.S.) of theequation to balance the reduction half reaction?
describe reactions with oxygen, sodium metal, oxidation withacidified K2Cr2O7 or acidified KMnO4
25 ml of 0.50 M H2O2 solution is added to 50 ml of 0.20 M KMnO4 in acidic solution. Which of the following statement(s) is/are true?
In neutral or faintly alkaline medium KMnO4 being a powerful oxidant can oxidize, thiosulphate almost quantitatively, to sulphate. In this reaction overall change in oxidation state of manganese will be:
CH3– CH2– OH 4Alkaline KMnO Heat+ → CH3 – COOHIn the above given reaction, alkaline KMnO4 acts as(a) reducing agent(b) oxidising agent(c) catalyst(d) dehydrating agen
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.