NEETChemistryCoordination Compounds
Choose the complex which is paramagnetic (i) [ Fe ( H ₂ O )₆ ]²⁺ (ii) K ₃ [ Cr ( CN )₆ ] (iii) K ₃ [ Fe ( CN )₆ ] (iv) K ₂ [ Ni ( CN )₄ ]
Options
- A(i),(ii) and(iii)
- B(i), (iii) and (iv)
- C(ii), (iii), and (iv)
- D(i), (ii) and (iv)
Correct answer
A. (i),(ii) and(iii)
Step-by-step solution
(i) [ Fe ( H ₂ O )₆ ]²⁺ (ii) [ Cr ( CN )₆ ]³⁻ (iii) [ Fe ( CN )₆ ]³⁻ (iv) [ Ni ( CN )₄ ]²⁻ Thus complexes (i), (ii) and (iii) are paramagnetic species.