MCQ
The metal complex that is diamagnetic is (Atomic number: $Fe , 26 ; Cu , 29)$
- ✓$K _{3}\left[ Cu ( CN )_{4}\right]$
- B$K _{2}\left[ Cu ( CN )_{4}\right]$
- C$K _{3}\left[ Fe ( CN )_{4}\right]$
- D$K _{4}\left[ FeCl _{6}\right]$
✓
Answer
Correct option: A.
$K _{3}\left[ Cu ( CN )_{4}\right]$
a
$K _{3}\left[ Cu ( CN )_{4}\right]$
$K _{3}\left[ Cu ( CN )_{4}\right]$
$O.N.$ of copper is $Cu ^{+1}$
$Cu ^{+1}=[ Ar ] 3 d ^{10} \Rightarrow$ Diamagnetic
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