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Redox Reactions — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryRedox Reactions1 Mark
MCQ
In a solution of $\text{KMnO}_4, \text{MnO}_4^-$ acts as a:
  • A
    Induced indicator.
  • ✓
    Self indicator.
  • C
    Spontaneous indicator.
  • D
    None of the above.
✓

Answer

Correct option: B.
Self indicator.
In redox titrations, the reagent which itself is intense in colour,
e.g. permanganate ion, $[\text{MnO}]_4^-$ acts as self indicator.

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