40. Rate of basic hydrolysis among the following three complexes will be
[Co (en), CI [Co (en), (CN) CIT. [Co (en), (NO) CU
(A) [Co (en)(NO2) CIJ* > [Co (en) (CN) Cis* > [Co (en), Chlt
(B) (Co (en), CI,F+ > [Co (en), (CN) CITY > [Co(en), (NO, CH"
(C) (Co (en), cl, > [Co (en), (NO) CI" > [Co (en), (CN) CITY
(D) [Co (en), (CN) CI" > [Co (en), (NO2) CIT' > [Co (en), Chl
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Base hydrolysis of [Co(NH3)5Cl]. 2+ follow the SN. 1 ... chloride ion in [Co( NH3)4(NH2)Cl]. + is a rate determining step. 3. [Ni(CN)4]. 2- ... low spin complex. 4.
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