1. Tardigrade
  2. Question
  3. Chemistry
  4. When AgNO3 is added to a solution of Co(NH3)5Cl3 the precipitate of AgCl shows two ionizable chloride ions. This means :

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. When $AgNO_3$ is added to a solution of $Co(NH_3)_5Cl_3 $ the precipitate of AgCl shows two ionizable chloride ions. This means :

ManipalManipal 2002Coordination Compounds

Solution:

As one mole of the complex gives two moles of AgCl this means that the complex has two ionisable Cr ions in one molecule. Thus, two $Cl^-$ ions satisfy primary valency while third $Cl^-$ ion satisfy secondary valency. $[Co(NH_3)_5Cl]Cl_2 (aq) \rightleftharpoons [Co(NH_3)_5Cl]^{2+} (aq) + 2Cl^- (aq)$