MCQ
Which of the following complex ion is not expected to absorb visible light ?
- A$[Ni(H_2O)_6]^{2+}$
- ✓$[Ni(CN)_4]^{2-}$
- C$[Cr(NH_3)_6]^{3+}$
- D$[Fe(H_2O)_6]^{2+}$
✓
Answer
Correct option: B.
$[Ni(CN)_4]^{2-}$
b
Not expected to absorb visible light unpaired $'e'$ is zero i.e. $[Ni(CN)_4]^{-2}$
Not expected to absorb visible light unpaired $'e'$ is zero i.e. $[Ni(CN)_4]^{-2}$
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