Which of the following factors will affect the rate of the reaction represented by the following equation?
2HCl(aq) + CaCO3(s) \(\rightarrow\) CaCl2(aq) + H2O(1) + CO2(g)
I. Pressure
II.Concentration
III. Nature of reactants
IV. Temperature
I and II only
II, III and IV only
I, II and III only
I, II. III and IV
Correct answer is B
All others except pressure would affect the equilibrium of the system.