Which complex of \[C{{o}^{2+}}\] will have the weakest crystal field s – McqOptions

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1.	Which complex of \[C{{o}^{2+}}\] will have the weakest crystal field splitting -
A.	\[{{\left[ CoC{{l}_{6}} \right]}^{4-}}\]
B.	\[{{[Co{{(CN)}_{6}}]}^{4-}}\]
C.	\[{{[Co{{(N{{H}_{3}})}_{6}}]}^{2+}}\]
D.	\[{{[Co{{(en)}_{3}}]}^{2+}}\]
Answer» B. \[{{[Co{{(CN)}_{6}}]}^{4-}}\]

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