Which of the following can be named as dibrom | vedclass

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(B) $1$. The name 'dibromidobis(ethylenediamine)chromium$(III)$ bromide' indicates the following components:$2$. 'bis(ethylenediamine)' means two ethy

Vedclass · Accepted Answer

$[Cr(en)_2Br_2]Br$

Vedclass · Answer

(B) $1$. The name 'dibromidobis(ethylenediamine)chromium$(III)$ bromide' indicates the following components:$2$. 'bis(ethylenediamine)' means two ethylenediamine $(en)$ ligands are present: $[Cr(en)_2]$.$3$. 'dibromido' means two bromide ions are present as ligands inside the coordination sphere: $[Cr(en)_2Br_2]$.$4$. 'chromium$(III)$' indicates the oxidation state of $Cr$ is $+3$. Let $x$ be the oxidation state of $Cr$. Then $x + 2(0) + 2(-1) = +1$ (since the total charge of the complex must balance the outer bromide ion). Thus,$x - 2 = +1$,so $x = +3$.$5$. 'bromide' outside the coordination sphere indicates one $Br^-$ ion is present to balance the charge of the complex ion $[Cr(en)_2Br_2]^+$.$6$. Therefore,the formula is $[Cr(en)_2Br_2]Br$.

Which of the following can be named as dibromidobis(ethylenediamine)chromium$(III)$ bromide?

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