Which of the following compounds is most acidic?
A) I
B) II
C) III
D) IV
E) None of these

Name: Which of the following compounds is most acidic? A) I B) II C) III D) IV E) None of these
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Question

Which of the following compounds is most acidic? 
A) I 
B) II 
C) III 
D) IV 
E) None of these

Quizplus · Accepted Answer

Compound II has a carboxylic acid functional group, which is highly acidic due to the presence of the electronegative oxygen atom that can stabilize negative charge. The other compounds do not have such functional groups that can donate a proton to act as an acid.

Which of the Following Compounds Is Most Acidic