Which one of the following complexes shows optical isomerism ?

 

  • Option 1)

     [Co(NH3)3Cl3]

     

  • Option 2)

     cis[Co(en)2Cl2]Cl

     

  • Option 3)

    trans[Co(en)2Cl2]Cl

     

  • Option 4)

     [Co(NH3)4Cl2]Cl

     

     

     

    (en=ethylenediamine)

     

 

Answers (1)

As discussed in

 

These molecules are optically active having absence of plane of symmetry. 

This molecule has absence of plane of symmetry and hence option 2 is correct.


Option 1)

 [Co(NH3)3Cl3]

 

This option is incorrect.

Option 2)

 cis[Co(en)2Cl2]Cl

 

This option is correct.

Option 3)

trans[Co(en)2Cl2]Cl

 

This option is incorrect.

Option 4)

 [Co(NH3)4Cl2]Cl

 

 

 

(en=ethylenediamine)

 

This option is incorrect.

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