Question

Among the following, the correct statement(s) is/are:

• A. The first $pK_a$ of malonic acid is lower than the $pK_a$ of acetic acid while its second $pK_a$ is higher than the $pK_a$ of acetic acid.
• B. The first $pK_a$ of malonic acid is higher than the $pK_a$ of acetic acid while its second $pK_a$ is lower than the $pK_a$ of acetic acid.
• C. Both the first and the second $pK_a$ of malonic acid are lower than the $pK_a$ of acetic acid.
• D. Both the first and the second $pK_a$ of malonic acid are higher than the $pK_a$ of acetic acid.

Answer 1

Answer: (A)

The first $pK_a$ of malonic acid is lower than the $pK_a$ of acetic acid while its second $pK_a$ is higher than the $pK_a$ of acetic acid.

Answer 2

The correct option is (A): The first $pK_a$ of malonic acid is lower than the $pK_a$ of acetic acid while its second $pK_a$ is higher than the $pK_a$ of acetic acid.