Which of the following 2 compounds exhibit both Geometrical and Structural isomerism? aligned & A = [ Co ( NH ₃ )₄ Cl ₂ ] NO ₂ & ~B = [ Co ( NH ₃ ) Br ] SO ₄ & C = [ Co ( NH ₃ )₃ ( NO ₂ )₃ ] & D = [ Cr ( H ₂ O )₆ ] Cl ₃ aligned

Step-by-step solution

Compound A is [ Co ( NH ₃ )₄ Cl ₂ ] NO ₂ . It exhibits structural isomerism (ionization isomerism with [ Co ( NH ₃ )₄ Cl NO ₂ ] Cl ) and geometrical isomerism (cis and trans forms of the [ Co ( NH ₃ )₄ Cl ₂ ]⁺ ion). Compound B is [ Co ( NH ₃ )₅ Br ] SO ₄ . It exhibits ionization isomerism with [ Co ( NH ₃ )₅ SO ₄ ] Br , but it does not exhibit geometrical isomerism because the coordination sphere [ Co ( NH ₃ )₅ Br ]²⁺ is of the type MA₅B , which cannot show geometrical isomerism. Compound C is [ Co ( NH ₃ )₃ ( NO ₂