Question

Sulfuric acid, $\left(H_{2}S{O}_4\right)$ is a diprotic acid. which hydrogen ion is most difficult to remove ?

• A. The first
• B. The second
• C. They are both equally difficult to remove
• D. None of the above

Answer 1

The correct option is B The second

It is more difficult to remove a positively charged proton $\left(H^{+}\right)$ from a negatively charged anion due to electrostatic force. thus second hydrgen from $\left(H_{2}S{O}_4\right)$ is diificult to remove as compared to first hydrogen. hence option B is correct.