Which of the following statement(s) is/are not true about the complex ion :[CrCl(NO2)(en)2]+(en=ethylenediamine)?
A
It has two geometrical isomers-cis and trans.
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B
Cis and trans forms are not diastereomers to each other.
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C
Only the cis isomer displays optical activity.
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D
It has three optically active isomers : d, l and meso forms.
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Solution
The correct options are B Cis and trans forms are not diastereomers to each other. D It has three optically active isomers : d, l and meso forms. It has 2 geometrical cis/trans isomers. Also it has two optical isomer cis and mirror image of cis isomer. One optically inactive isomer (trans isomer).