Which of the Following Is Not True for Equilibrium Constants

Multiple Choice

Which of the following is not true for equilibrium constants?

A) when related reactions are added together, their equilibrium constants are added together
B) the equilibrium constants of the forward and reverse reactions are negative reciprocals of one another
C) when the coefficients in a balanced chemical reaction are multiplied by a factor, the equilibrium constant is multiplied by the same factor
D) the equilibrium constants of the forward and reverse reactions are equal to the respective rate constants of these reactions
E) all of these