Equilibrium Question 182
Question: In absence of formation of complex ions by the addition of a common ion, the solubility of a given salt is [BHU 1979]
Options:
A) Increased
B) Decreased
C) Unaffected
D) First increased and then decreased
Show Answer
Answer:
Correct Answer: B
Solution:
the addition of a common ion the solubility of $PbCl_2$ in moles/litre decreases as the reaction shifts toward the left to relieve the stress of the excess product. Adding a common ion to a dissociation reaction causes the equilibrium to shift left, toward the reactants, causing precipitation.
