According to Le Chatelier's Principle: What happens when you add DIFFERENT species to the equilibrium?
Le Chatelier's principle applies to equilibrium concentrations in specific equilibria. Addition of different species that affect these equilibrium concentrations, will change the equilibria accordingly.
Consider the solution behaviour of a sparingly soluble or insoluble salt at equilibrium, say
To describe this reaction, we write
More silver ion,
On the other hand, for equilibrium (ii), if we reduce