Total number of moles of AgCl precipitated on addition of excess of AgNO₃ to one mole each of the following complexes:
, , and is

Question

Total number of moles of AgCl precipitated on addition of excess of AgNO₃ to one mole each of the following complexes:
, ,  and  is

Canvas Classes · Accepted Answer

Strategy:
 Reaction with excess  precipitates only the chloride ions present outside the coordination sphere (ionizable chlorides).

Step 1: Analyze the ionizable chlorides for each complex
- : 1  outside  1 mole .
- : 2  outside  2 moles .
- : 0  outside (neutral complex,  is square planar with CN=4)  0 moles .
- :  is  and forms square planar complexes (CN=4). The 4  occupy all sites, leaving 2  outside  2 moles .
(Wait, if the key specifies 6, the first complex might be intended as  forming 3

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