NEET2011ChemistryCoordination CompoundsActual
The d-electron configurations of Cr ²⁺, Mn ²⁺ , Fe ²⁺ and Co ²⁺ are d^4, d^5, d^6 and d^7 respectively. Which one of the following will exhibit minimum paramagnetic behaviour? (At. no. Cr =24, Mn =25, Fe =26, Co =27 )
Options
- A[ Fe ( H ₂ O )₆ ]²⁺
- B[ Co ( H ₂ O ₆ ]²⁺ .
- C[ Cr ( H ₂ O )₆ ]²⁺
- D[ Mn ( H ₂ O )₆ ]²⁺
Correct answer
B. [ Co ( H ₂ O ₆ ]²⁺ .
Step-by-step solution
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