Which of the following is TRUE of a catalyst? I. it alters the activation energy of a reaction
II. it is effective in a reaction but cannot initiate a reaction
III, it affects the equilibrium of a reversible reaction
IV. it affects the overall reaction
I and II only
I, II and III only
II and III only
II, II and IV only
III and IV only
Correct answer is A
No explanation has been provided for this answer.