Which of the following describes the mechanism of an enzyme? a. enzymes reduce the activation energy of the transition state. b. enzymes require a metal to coordinate with the reactants. c. enzymes always function at low ph. d. enzymes modify the products to shift the equilibrium.

Answer:             1.0  × 10⁻⁵ msolution:                     as we know ph is given as,                                    ph  = -log [h⁺]and,                                    [h⁺]  =  10^-ph    (1)putting value of ph in eq. 1,                                    [h⁺]  =  10⁻⁵                                    [h⁺]  =  1.0  × 10⁻⁵ m