Coordination Compounds Ques 41
41. Which is diamagnetic?
[NEET Kar. 2013]
(a) $[Fe(CN)_6]^{3-}$
(b) $[Co(F_6)]^{3-}$
(c) $[Ni(CN)_4]^{2-}$
(d) $[NiCl_4]^{2-}$
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Answer:
Correct Answer: 41.(c)
Solution:
(c) $Ni^{+2} \to 3 d^{8}=
$CN^{-}$is a strong ligand and causes pairing of $3 d$ electrons of $Ni^{2+}$.
$\therefore$ It is diamagnetic.