Verified Solution • 2025–26 Session moderate

QJEEM22Ch8592: JEE Main 2022 Chemistry - Class 12 JEEM22Ch8592 Solution: Given below are two statements. Statement I : Iron (III)…

Given below are two statements.

Statement I : Iron (III) catalyst, acidified K2Cr2O7\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7} and neutral KMnO4\mathrm{KMnO}_{4} have the ability to oxidise I−\mathrm{I}^{-} to I2\mathrm{I}_{2} independently.

Statement II : Manganate ion is paramagnetic in nature and involves pπ−pπ\mathrm{p} \pi-\mathrm{p} \pi bonding.

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

Multiple Choice Options

  • A Both Statement I and Statement II are true.
  • B Both Statement I and Statement II are false.
  • C Statement I is true but Statement II is false.
  • D Statement I is false but Statement II is true.

Step-by-Step Verified Solution

Manganate ion MnO42−\mathrm{MnO}_{4}^{2-} has tetrahedral structure

JEE Main 2022 (Online) 27th July Morning Shift Chemistry - d and f Block Elements Question 88 English Explanation
has only dπ−pπ  π\mathrm{d} \pi-\mathrm{p} \pi\,\, \pi -bonds.

Fe3+\mathrm{Fe}^{3+} is not used as a catalyst in the conversion of I- to I2\mathrm{I}_{2} by K2Cr2O7⋅K2Cr2O7\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7} \cdot \mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7} oxidise I−\mathrm{I}^{-} in acidic medium easily

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