In the complex, CoCl3. 5NH3, the number of ionizable chloride ions are

According to Werner's theory, primary valency of a metal is satisfied by negative ions only.Werner formula …CoCl3. 5NH3Modern formula . . .Co(NH3)5ClCl2⇌Co(NH3)5Cl 2-+2Cl-One chloride ion satisfies both primary and secondary valency…..dual character Two chloride ions satisfy primary valency only…..ionizable chloride ionsFive ammonia molecules satisfy secondary valency only.