Which of these is a weak, diprotic acid?
A) H–CO–OH (HCOOH)
B) HO–CH₂–CH₂–OH
C) (HO)₂SO₂ (H₂SO₄)
D) H–CO–CO–H (OHC–CHO)
E) HO–CO–CO–OH (HOOC–COOH)
IMAT 2023 · Question 47
Q47 - The concept of acid and base
Pinned
The correct answer is E) HO–CO–CO–OH (HOOC–COOH).
You need weak and diprotic. Oxalic acid, HOOC–COOH, has two carboxylic acid groups and is weak.
Methanoic acid is weak but has only one acidic H. Sulfuric acid is diprotic but strong. Ethanediol is an alcohol and ethanedial is an aldehyde, so neither is really acidic.
Replies 0
No other replies yet.
Log in to reply.