Colloids – Preparation and Charge on Colloidal Particles

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1. 1 2019 #
   Which mixture of the solutions will lead to the formation of negatively charged colloidal $[AgI]I^-$ sol.?
   A 50 mL of 1 M $AgNO_3$ + 50 mL of 1.5 M KI

   B 50 mL of 1 M $AgNO_3$ + 50 mL of 2 M KI

   C 50 mL of 2 M $AgNO_3$ + 50 mL of 1.5 M KI

   D 50 mL of 0.1 M $AgNO_3$ + 50 mL of 0.1 M KI
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