Q.

The type of isomerism shown by the complex [CoCl2(en)2] is             [2018]

1 geometrical isomerism  
2 coordination isomerism  
3 ionization isomerism  
4 linkage isomerism  

Ans.

(1)

[CoCl2(en)2], exhibits geometrical isomerism, as the coordination number of Co is 6 and this compound has octahedral geometry.