The number of ions formed in aqueous solution by the compound [Co(NH3)4Cl2]Cl is:
Match the complex ions given in Column I with the possible isomerism given in Column II and assign the correct code. Column~I Column~II (Complex species) (Isomerism)A. [Co(NH3)4Cl2]+1. OpticalB. cis−[Co(en)2Cl2]+2. IonisationC. [Co(NH3)5(NO2)]Cl23. CoordinationD. [Co(NH3)6][Cr(CN)6]4. Geometrical Codes ABCD(a)1243(b)4321(c)4213(d)4123