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Chemistry · d and f Block Elements

JEE Main 2026 — 28 January, Evening Shift — Question 56

Consider the following statements about manganate and permanganate ions. Identify the correct statements :

A. The geometry of both manganate and permanganate ions is tetrahedral.

B. The oxidation states of Mn in manganate and permanganate are +7 and +6 , respectively.

C. Oxidation of Mn (II) salt by peroxodisulphate gives manganate ion as the final product.

D. Manganate ion is paramagnetic and permanganate ions is diamagnetic.

E. Acidified permanganate ion reduces oxalate, nitrite and iodide ions.

Choose the correct answer from the options given below:

  1. Option A:

    A, C and D Only

  2. Option B:

    A, B and C Only

  3. Option C:

    A, D and E Only

  4. Option D:

    A and D Only

    Correct

Answer: D

Step-by-step solution

Manganate ion →MnO4−2\rightarrow \mathrm{MnO}_{4}{ }^{-2} Permanganate ion →MnO4−\rightarrow \mathrm{MnO}_{4}^{-} (A) Both are tetrahedral ( d3 s\mathrm{d}^{3} \mathrm{~s} Hybridisation) (B) MnO4−\mathrm{MnO}_{4}^{-}( +7 oxidation state) MnO4−2\mathrm{MnO}_{4}^{-2} ( +6 oxidation state) (C) Mn2++S2O82−→MnO4−\mathrm{Mn}^{2+}+\mathrm{S}_{2} \mathrm{O}_{8}^{2-} \rightarrow \mathrm{MnO}_{4}^{-}(Permanganate ion) (D) MnO4−→\mathrm{MnO}_{4}^{-} \rightarrow Diamagnetic MnO4−2→\mathrm{MnO}_{4}^{-2} \rightarrow Paramagnetic (E) It is oxidising agent

Answer key and solution verified before publishing.

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Exam
JEE Main 2026
Paper
28 January, Evening Shift
Subject
Chemistry
Chapter
d and f Block Elements
Topic
Compounds of Manganese

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