The conjugate base of which of the following acids is expected to be the weakest base…

CHEMISTRY · Single correct · A Level · Chemistry · Acids and bases · Acids and bases

Problem

The conjugate base of which of the following acids is expected to be the weakest base in water? (a) Nitrous acid (

pK_a = 3.37

) (b) Benzoic acid (

pK_a = 4.20

) (c) Chloroacetic acid (

pK_a = 2.86

) (d) Propanoic acid (

pK_a = 4.87

)