Ammonia gas does not evolve from the complex FeCl3.4NH3 but it gives white precipitate with aqueous solution of AgNO3. Coordination number of central metal ion in the above complex is six. Give IUPAC name of the complex

The complex 3 3 FeCl .4NH , coordination number of central metal Fe ion is six. The complex compound does not evolve the ammonia gas but it gives white precipitate with aqueous solution of AgNO3 this proves the presence of one - Cl ion in ionization sphere, Hence, the coordination compound is 2 3 4 FeCl (NH ) Cl . The IUPAC name of complex compound is dichloro tetraamine ferrum (III) chloride. Hence, the correct option is (d).