Verified Solution • 2025–26 Session moderate

QJEEM22Ch529c: JEE Main 2022 Chemistry - Class 11 JEEM22Ch529c Solution: Given below are two statements : One is labelled as Assertion A …

Given below are two statements : One is labelled as Assertion A and the other is labelled as Reason R

Assertion A : Permanganate titrations are not performed in presence of hydrochloric acid.

Reason R : Chlorine is formed as a consequence of oxidation of hydrochloric acid.

In the light of the above statements, choose the correct answer from the options given below

Multiple Choice Options

  • A Both A\mathrm{A} and R\mathrm{R} are true and R\mathrm{R} is the correct explanation of A\mathrm{A}
  • B Both A\mathrm{A} and R\mathrm{R} are true but R\mathrm{R} is NOT the correct explanation of A\mathrm{A}
  • C A\mathrm{A} is true but R\mathrm{R} is false
  • D A\mathrm{A} is false but R\mathrm{R} is true

Step-by-Step Verified Solution

2KMnO4+16HCl→2MnCl2+2KCl+8H2O+Cl22 \mathrm{KMnO}_4+16 \mathrm{HCl} \rightarrow 2 \mathrm{MnCl}_2+2 \mathrm{KCl}+8 \mathrm{H}_2 \mathrm{O}+\mathrm{Cl}_2

HCl\mathrm{HCl} is not used in the process of titration because it reacts with the (KMnO4)\left(\mathrm{KMnO}_{4}\right) that is used in the process and gets oxidized.

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