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संकुल यौगिक K3[Fe(C2O4)3] में केन्द्रीय धातु परमाणु की ऑक्सीकरण संख्या एवं उपसहसंयोजन संख्या लिखिए।

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K3[Fe(C2O4)3] में Fe की ऑक्सीकरण अवस्था:

K3[Fe(C2O4)3] + 3K+  → [Fe(C2O4)3]3- 

Fe का ऑक्सीकरण अंक x मान लेते हैं

x + 3(-2) = -3

x - 6 = -3

x = +6 - 3 = +3 

उपसहसंयोजन संख्या = 6 क्योंकि यहाँ तीन द्विदंतुक लिगैण्ड C2O42- हैं। 

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