The IUPAC name of the following complex is [C | vedclass

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(D) The complex is $[Co(en)_2 Br_2] Br$,where $en$ is ethane-$1, 2$-diamine.$1$. The ligand $Br^-$ is named as 'bromido'. Since there are two,it is 'd

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dibromidobis (ethane-$1, 2$-diamine) cobalt $(III)$ bromide.

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(D) The complex is $[Co(en)_2 Br_2] Br$,where $en$ is ethane-$1, 2$-diamine.$1$. The ligand $Br^-$ is named as 'bromido'. Since there are two,it is 'dibromido'.$2$. The ligand $en$ (ethane-$1, 2$-diamine) is a bidentate ligand,so we use the prefix 'bis'.$3$. The oxidation state of $Co$ is calculated as: $x + 2(0) + 2(-1) = +1$,which gives $x = +3$.$4$. The central metal is cobalt,and since it is in a cationic complex,it is named 'cobalt $(III)$' followed by the counter ion 'bromide'.$5$. Combining these,the correct $IUPAC$ name is dibromidobis (ethane-$1, 2$-diamine) cobalt $(III)$ bromide.

The $IUPAC$ name of the following complex is $[Co(NH_2 CH_2 CH_2 NH_2)_2 Br_2] Br$.

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