JEE Chemistry 2023 Question with Solution

Given: The complexes are matched with crystal field splitting energy values.

Find: The correct matching between List I and List II.

The solution provided works with crystal field stabilization energy values and concludes the matching:

For Ti$^{2+}$ (A), the value obtained is $-0.8 \, \text{eV}$.

For V$^{2+}$ (B), the value obtained is $-1.2 \, \text{eV}$.

For Mn$^{3+}$ (C), the value obtained is $0 \, \text{eV}$.

For Fe$^{3+}$ (D), the value stated in the solution conclusion is $-0.6 \, \text{eV}$.

Thus, the matching written in the solution is:

• A $\to$ II
• B $\to$ IV
• C $\to$ III
• D $\to$ I

This corresponds to option C.

There is a discrepancy because the solution says The Correct Option is B, but the stepwise matching and the answer key both correspond to option C. Using the actual working, the correct option is C.