Choose which member in each of the following pairs reacts faster or has the more favorable...

Choose which member in each of the following pairs reacts faster or has the more favorable equilibrium constant for reaction with the indicated reagent. Explain your reasoning.

(a)     (rate of reduction with sodium borohydride)

(b)     (equilibrium constant for hydration)

(c)    Acetone or 3,3-dimethyl-2-butanone (equilibrium constant for cyanohydrin formation)

(d)    Acetone or 3,3-dimethyl-2-butanone (rate of reduction with sodium borohydride)

(e)    CH2(OCH2CH3)2 or (CH3)2C(OCH2CH3)2 (rate of acid-catalyzed hydrolysis)