Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AIIMS 2012
Exam
AIIMS
Year
2012
Subject
Chemistry
Chapter
d and f Block Elements

AIIMS 2012 · Chemistry · d and f Block Elements

MnO_3 in an acidic medium dissociates into

MnO3\mathrm{MnO}_3 in an acidic medium dissociates intoMnO_3 in an acidic medium dissociates into

Options

  1. AMnO2\mathrm{MnO}_2 and MnO4−\mathrm{MnO}_4^{-}
  2. BMnO\mathrm{MnO} and MnO4−\mathrm{MnO}_4^{-}
  3. CMnO2\mathrm{MnO}_2 and MnO\mathrm{MnO}
  4. DMnO2\mathrm{MnO}_2 and MnO3\mathrm{MnO}_3

Correct answer

A. MnO2\mathrm{MnO}_2 and MnO4−\mathrm{MnO}_4^{-}

Step-by-step solution

In acidic solution, manganese (VI) becomes unstable and undergo disproportionation to form manganese (VII) and manganese (IV) MnO_3 in an acidic medium dissociates into
Practice d and f Block Elements on Quantrex Academy →

More from d and f Block Elements

Although +3 oxidation state is most common in lanthanoids, cerium still shows +4… NEET 2026The lanthanide ion having four unpaired electrons is (Given : Atomic numbers of Ce =58… NEET 2026The green paramagnetic species formed by heating KMnO _4 at 513 K is NEET 2026The calculated 'spin-only' magnetic moment of Ti^ 2+ \ (3d^2) is : NEET 2026Match List I with List II : List I (Transition metal/compound/complex) List II (Catalytic… NEET 2026Given below are two statements : One is labelled as Assertion A and the other is labelled… NEET 2026Given below are two statements : Statement I : Ferromagnetism is considered as an extreme… NEET 2025Which of the following set of ions act as oxidising agents? NEET 2024 Full d and f Block Elements list All AIIMS PYQs