Question

Arrange in order of increasing acidic strength

• A. X > Z > Y
• B. Z < X > Y
• C. X > Y > Z
• D. Z > X > Y

Answer 1

Answer: (A)

Carboxylic acid is stronger acid than ammonium ion, hence
-COOH(X) is most acidic. ${}_{Z(N{H}_3)}^{+}$ is more acidic than ${}_{Y(N{H}_3)}^{+}$
due to - / effect of -COOH on Z. Hence, overall acid strength
order is
X > Z > Y