Which of the following factors will affect the rate of the reaction represented by the following equation?

2HCl(aq) + CaCO3(s) → CaCl2(aq) + H2O(1) + CO2(g)

I. Pressure
II.Concentration
III. Nature of reactants
IV. Temperature

A. I and II only
B. II, III and IV only
C. I, II and III only
D. I, II. III and IV

Correct Answer: Option B

B. II, III and IV only

Explanation

All others except pressure would affect the equilibrium of the system.