Q. Which of the following is not a characteristic property of chemical equilibrium?
A) Rate of forward reaction is equal to rate of backward reaction at equilibrium
B) After reaching the chemical equilibrium, the concentrations of reactants and products remain unchanged with time
C) For $A(g) \rightleftharpoons B(g),\ K_{c}\ is\ 10^{- 2}$. If this reaction is carried out in the presence of catalyst, the value of $K_{c}$ decreases
D) After reaching the equilibrium, both forward and backward reactions continue to take place
Explanation
(c)
There will be no effect on equilibrium constant $(K_{c})$ in presence of catalyst. So, statement (c) is wrong.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.