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The charge on cobalt in $[CO(CN)_6]^{3-}$ is

$(a)\;-3\qquad(b)\;+3\qquad(c)\;-6\qquad(d)\;+6$

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The charge on cobalt in $[CO(CN)_6]^{3-}$ is +3.
Hence (b) is the correct answer.
answered Jan 31, 2014 by sreemathi.v
 
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