Question

Match List-I with List-II 



Choose the correct answer from the options given below:

• (A) (I), (B) (II), (C) (II), (D) (IV)
• (A) (II), (B) (II), (C) (I), (D) (III)
• (A) (I), (B) (II), (C) (III), (D) (IV)
• (A) (III), (B) (IV), (C) (I), (D) (II)

Hint:

The crystal field splitting energy depends on the metal ion, ligand field, and whether the complex is high-spin or low-spin.

Answer 1

The Correct Option is C

- [Fe(CN)₆]⁴⁻ (A): Iron in this complex is low-spin, leading to a 0Dq crystal field splitting energy.
- [Cu(CN)₆]⁴⁻ (B): Copper in this complex leads to a larger crystal field splitting energy of -24Dq.
- [Ni(Cl)₆]⁴⁻ (C): Nickel in this complex gives a crystal field splitting of -6Dq.
- [Zn(CN)₆]⁴⁻ (D): Zinc in this complex exhibits a moderate crystal field splitting energy of -12Dq.
Step 2: Conclusion.
Thus, the correct matching is: \[ \text{(A) (I), (B) (II), (C) (III), (D) (IV)} \]
Final Answer: \[ \boxed{\text{(A) (I), (B) (II), (C) (III), (D) (IV)}} \]