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CBSE Class 12 Chemistry 2016 Delhi Set 1 Solved Paper

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Question : 22 of 26
Marks: +1, -0
(a) For the complex [Fe(CN)6]3−[\mathrm{Fe}(\mathrm{CN})_6]^{3-}, write the hybridization, magnetic character and spin nature of the complex. (At. number: Fe=26\mathrm{Fe}=26 ).
(b) Draw one of the geometrical isomers of the complex [Pt(en)2Cl2]2+[\mathrm{Pt}(\mathrm{en})_2\mathrm{Cl}_2]^{2+} which is optically active.
Solution:  
Hybridization −d2sp3-d^2 s p^3 (octahedral), Magnetic character - Paramagnetic, Spin nature - Low spin complex
(b)
The cis form of he complex [Pt(en)2Cl2]2+[\mathrm{Pt}(\mathrm{en})_2\mathrm{Cl}_2]^{2+} is optically active.
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