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Chemistry

NEET ChemistryClass 12Trends in M³⁺/M²⁺ electrode potentialsMediumAssertion–Reason

Question 7 of 10

Cr²⁺ and Mn³⁺ both have a d⁴ configuration, but they behave in opposite ways. Judge the Assertion (A) and the Reason (R) below.

  • Assertion (A): Cr²⁺ is a strong reducing agent.
  • Reason (R): On losing an electron Cr²⁺ becomes Cr³⁺, which has the stable configuration with a half-filled t₂g level (d³).

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