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Specify the oxidation numbers of the metals in the following coordination entities: (i). `[Co(H_2O)(CN)(en)_2]^(2+)` (ii). `[CoBr_2(en)_2]^(o+)` (iii). `[PtCl_4]^(2-)` ltbtgt (iv). `K_3[Fe(CN)_6]` (v). `[Cr(NH_3)_3Cl_3]` |
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Answer» (i). `[overset(x)(C)o(overset(0)(H_2O)(Coverset(-1)(N))(eoverset(0)(n))_2]^(2+)` `impliesx+(0)+(-1)+(0)=+2` (ii). `[overset(x-1)(PtCl_4]^(2-)]` `impliesx+(-1)xx4=-2,becausex=+2` (iii). `[overset(x)(C)r(Noverset(0)(H)_3)_3(Coverset(-1)(l)_3)]` `impliesx+(0)xx(3)+(-1)xx(3)=0,impliesx=+3` (iv). `[(overset(x)(C)0overset(-1)(B)r_2)(eoverset(0)(n))_2]^(o+)` `impliesx+(-1)xx(2)+(0)xx(2)=+1impliesx=+3` (v). `overset(+1xx3)(K_3)[Fe(Coverset(-1)(N))_6]^(-3)` `implies3(+1)xx x +(-1)(6)=0impliesx=+3` |
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