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Find the number of complex(es) which have at least
\( \mathrm{P} \)
one five member chelate ring formed by two carbon
W
atoms, two nitrogen atoms and one central metal.
(i) \( [\mathrm{Co}(\mathrm{EDTA})]^{-} \)
(ii) \( \left[\mathrm{Co}(\mathrm{en})_{3}\right]^{3+} \)
(iii) \( \left[\mathrm{Co}(\mathrm{Gly})_{3}\right]^{0} \)
(iv) \( \left[\mathrm{Co}(\text { bipy })_{3}\right]^{3+} \)
(v) \( \left[\mathrm{Co}(\mathrm{ox})_{3}\right]^{3-} \)
(vi) \( \left[\mathrm{Co}(\text { dien })\left(\mathrm{NH}_{3}\right)_{3}\right]^{3+} \)
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