12. Find the wrong statement given below: A. Reaction rate increases with the increase in temperature. B. Number of activated molecules decreases with the increase in temperature. C. The relation between temperature and rate constant k can be given by Arrhenius equation. D. In the Arrhenius equation, A is the frequency factor for a reaction. E. The reaction between KMnO4 solution and H2C204 solution in acidic medium completes when the pink color disappears. 13. For the reaction, I 20r0- (aq) + 2H+ (aq) = Cr20- (aq) + H20(1) Yellow Orange What will happen if the following changes done to the system at equilibrium state? (i) Addition of NaOH to the system (ii) Addition of NaCl to the system (iii) Addition of BaCl2 to the system () A. backward forward backward B. forward no change no change C. backward no change no change D. forward backward backward E. backward no change backward