The configurations for the complex [Co(en)(NH | vedclass

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(D) The complex is $[Co(en)(NH_3)_2Br_2]^+$. Structure $I$ is the trans-isomer with respect to $Br$ atoms (they are at $180^{\circ}$ to each other). S

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$II$ and $III$ are geometrical isomers

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(D) The complex is $[Co(en)(NH_3)_2Br_2]^+$. Structure $I$ is the trans-isomer with respect to $Br$ atoms (they are at $180^{\circ}$ to each other). Structure $II$ is the cis-isomer with respect to $Br$ atoms (they are at $90^{\circ}$ to each other). Structure $III$ is the mirror image of structure $II$. Therefore,$II$ and $III$ are enantiomers (optical isomers). $I$ and $II$ are geometrical isomers (cis-trans). $I$ and $III$ are also geometrical isomers. Statement $D$ ($II$ and $III$ are geometrical isomers) is incorrect because they are optical isomers.

The configurations for the complex $[Co(en)(NH_3)_2Br_2]^+$ are shown. Which of the following statements is incorrect?

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The complex ion $[Co(en)_2Br_2]^+$ has two optical isomers. Their correct configurations are:

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