Question

Match the following pKa values:

• A. a -> 3, b -> 1, c -> 4, d -> 2
• B. a -> 4, b -> 2, c -> 3, d -> 1
• C. a -> 3, b -> 4, c -> 1, d -> 2
• D. a -> 2, b -> i, c -> 2, d -> 4

Answer 1

Answer: (C)

a -> 3, b -> 4, c -> 1, d -> 2

Answer 2

Presence of nitro group (EWG) increases the acidic strength, and picric acid is trinitrophenol.