Identify the homoleptic complexes with odd number of d electrons in the central metal : (A) [ FeO ₄ ]²⁻ (B) [ Fe ( CN )₆ ]³⁻ (C) [ Fe ( CN )₅ NO ]²⁻ (D) [ CoCl ₄ ]²⁻ (E) [ Co ( H ₂ O )₃ ~F ₃ ] Choose the correct answer from the options given below :

Step-by-step solution

(A) [ FeO ₄ ]²⁻ Fe ⁶⁺=3 ~d ^2 (B) [ Fe ( CN )₈ ]³⁻ Fe ³⁺=3 ~d ^5 (C) [ Fe ( CN )₅ NO ]²⁻ Fe ²⁺=3 ~d ^6 (D) [ CoCl 4]²⁻ Co ²⁺=3 ~d ^7 (E) [ Co ( H ₂ O )₃ ~F ₃ ] Co ³⁺=3 ~d ^6 (B) and (D) are homoleptic complex having odd no. of d electrons.