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Q.

Why is HCl not used to make the medium acidic in oxidation reactions of KMnO4 in acidic medium?

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a

Both HCl and KMnO4 act as oxidising agents

b

KMnO4 oxidises HCl into Cl2 which is also an oxidising agent

c

KMnO4 is a weaker oxidising agent than HCl

d

KMnO4 acts as a reducing agent in the presene of HCl.

answer is B.

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Detailed Solution

  • KMnO4​+16HCl⟶2KCl+2MnCl2​+8H2​O+5Cl2,
  • Since KMnO4 oxidizes HCl into Cl2

        HCl is not used to make medium acidic.

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