If the concentration of \[O{{H}^{-}}\] ions in the reaction \[Fe{{(OH)}_{3}}(s)F{{e}^{3+}}(aq)+3O{{H}^{-}}(aq)\] is decreased by \[\frac{1}{4}\] times, then equilibrium concentration of \[F{{e}^{3+}}\] will increase by [AIPMT (S) 2008]
A) 8 times
B) 16 times
C) 64 times
D) 4 times
Correct Answer:
C
Solution :
Key Idea: The concentration of solids taken to be unity.
Hence, if ion concentration is decreased by times, then equilibrium concentration of will increase by 64 times.