Three Acids Found in Foods Are Lactic Acid (In Milk

Multiple Choice

Three acids found in foods are lactic acid (in milk products) , oxalic acid (in rhubarb) , and malic acid (in apples) . The pK_a values are LA  3.88, OA  1.23, and MA  3.40. Which list has the conjugate bases of these acids in order of decreasing strength?

A) lactate  oxalate  malate
B) oxalate  malate  lactate
C) lactate  malate  oxalate
D) oxalate  lactate  malate
E) malate  lactate  oxalate