Verified Solution • 2025–26 Session moderate

QNEET-2022-Ch-472: NEET 2022 Chemistry - Class 12 NEET-2022-Ch-472 Solution: Given below are two statements: Statement I: \(Cr^{2+}\) is…

Given below are two statements: Statement I: Cr2+Cr^{2+} is oxidising and Mn3+Mn^{3+} is reducing in nature. Statement II: Sc3+Sc^{3+} compounds are repelled by the applied magnetic field. In the light of the above statements choose the most appropriate answer from the options given below

Multiple Choice Options

  • A Statement I is incorrect but Statement II is correct
  • B Both Statement I and Statement II are correct
  • C Both Statement I and Statement II are incorrect
  • D Statement I is correct but Statement II is incorrect

Step-by-Step Verified Solution

Statement I : Cr 2+ is reducing as its configuration changes from d 4 to d 3 , the latter having a half-filled t 2g level. On the other hand, the change from Mn 3+ to Mn 2+ results in the half-filled (d 5 ) configuration which has extra stability. Statement II : Sc 3+ has zero unpaired electron, so magnetic moment is also zero. Hence, Sc 3+ will repelled by the applied magnetic field.

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