Which complex of `Co^(2+)` will have the weakest crystal field splittingA. `[Co(CN)_(6)]^(4-)`B. `[CoCl_(6)]^(4-)`C. `[Co(en)_(3)]^(2+)`D. `[Co(H_(2)O)_(6)]^(2+)`

Which complex of `Co^(2+)` will have the weakest crystal field splitti

1.	Which complex of `Co^(2+)` will have the weakest crystal field splittingA. `[Co(CN)_(6)]^(4-)`B. `[CoCl_(6)]^(4-)`C. `[Co(en)_(3)]^(2+)`D. `[Co(H_(2)O)_(6)]^(2+)`
Answer» Correct Answer - B Spectrochemical series `I^(-) lt Br^(-) lt SCN^(-) lt Cl^(-) lt S^(2) lt F^(-)lt OH^(-) lt C_(2)O_(4)^(2-) lt H_(2)O lt NCS^(-) lt EDTA^(4-) lt NH_(3) lt en lt CN^(-) lt CO` ( Strongest)

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Which complex of `Co^(2+)` will have the weakest crystal field splittingA. `[Co(CN)_(6)]^(4-)`B. `[CoCl_(6)]^(4-)`C. `[Co(en)_(3)]^(2+)`D. `[Co(H_(2)O)_(6)]^(2+)`

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