Coordination Compounds

Short Answer Type

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Specify the oxidation numbers of the metals in the following coordination entities:
[CoBr2(en)2]+

The oxidation numbers of the metals in coordination entities:
Co = x
Br=(-1)
en=0

thus oxidation number is 

x + 2(–1) + 0 = +1
or x = 3

oxidation no. of Co = 3

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