CUET · CHEMISTRY · PYQ PAPER 2025
Match List-l with List-II
| List-l (Complex) | List-II (Property) |
| (A) \(\left[ CoF _6\right]^{3-}\) | (I) \(d^5\), high spin |
| (B) \(\left[ Fe ( CN )_6\right]^{4-}\) | (II) \(d^6\), high spin |
| (C) \(\left[ FeF _6\right]^{3-}\) | (III) \(d^5\), low spin |
| (D) \(\left[ Mn ( CO )_6\right]^{2+}\) | (IV) \(d^6\), low spin |
- A (A) - (II), (B) - (IV), (C) - (I), (D) - (III)
- B (A) - (II), (B) - (I), (C) - (III), (D) - (IV)
- C (A) - (IV), (B) - (II), (C) - (I), (D) - (III)
- D (A) - (IV), (B) - (II), (C) - (III), (D) - (I)
Answer & Solution
Correct Answer
(A) (A) - (II), (B) - (IV), (C) - (I), (D) - (III)
Step-by-step Solution
Detailed explanation
(A) \(\left[ CoF _6\right]^{3-}\): \(Co^{3+}\) is \(d^6\). \(F^-\) is weak field, high spin. \(\implies\) (II) (B) \(\left[ Fe ( CN )_6\right]^{4-}\): \(Fe^{2+}\) is \(d^6\). \(CN^-\) is strong field, low spin. \(\implies\) (IV) (C) \(\left[ FeF _6\right]^{3-}\): \(Fe^{3+}\) is…
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