# The equivalents of ethylene diamine required to replace the neutral ligands from the coordination

The equivalents of ethylene diamine required to replace the neutral ligands from the coordination sphere of the trans-complex of CoCl3.4NH3 is………….. (Round off to the Nearest Integer).

[Co(NH3)4Cl2]Cl + 2en $$→$$ [Co(en)2Cl2]Cl + 4NH3