The coordination compound of which one of the following compositions will produce two equivalents of AgCl on reaction with aqueous silver nitrate solution? [J&K CET 2009]

To produce 2 equivalents of AgCl, 2 chloride ions should be present as counter ion that is outside the coordination sphere. Since, Co should have a coordination number of 6. Hence, according to the question, the complex compound reaction should be 3 5 2 [Co(NH ) Cl]Cl , which is only possible from option (d). Therefore, the correct option is (d). 27 COORDINATION COMPOUNDS