JEE Mains · Chemistry · STD 12 - 5. Co-ordination chemistry
The metal complex that is diamagnetic is (Atomic number: \(Fe , 26 ; Cu , 29)\)
- A \(K _{3}\left[ Cu ( CN )_{4}\right]\)
- B \(K _{2}\left[ Cu ( CN )_{4}\right]\)
- C \(K _{3}\left[ Fe ( CN )_{4}\right]\)
- D \(K _{4}\left[ FeCl _{6}\right]\)
Answer & Solution
Correct Answer
(A) \(K _{3}\left[ Cu ( CN )_{4}\right]\)
Step-by-step Solution
Detailed explanation
\(K _{3}\left[ Cu ( CN )_{4}\right]\) \(O.N.\) of copper is \(Cu ^{+1}\) \(Cu ^{+1}=[ Ar ] 3 d ^{10} \Rightarrow\) Diamagnetic
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