CBSE Class 12 Chemistry 2019 Delhi Set 2 Solved Paper

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Question : 6
Total: 10
Out of [CoF6]3− and [Co(C2O4)3]3− which one complex is,
(i) Diamagnetic,
(ii) More stable,
(iii) Outer orbital complex and
(iv) Low spin complex
(Atomic number of Co=27 )
Solution:  
(i) [Co(C2O4)3]3−
(ii) [Co(C2O4)3]3−
(iii) [CoF6]3−
(iv) [Co(C2O4)3]3−
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