Question

Compared to other acids like $HCl,HN{O}_3,H_{2}S{O}_4$ is highly syrupy and viscous in nature. Identify the correct reason.

• A. $H_{2}S{O}_4$ is highly concentrated
• B. $H_{2}S{O}_4$ is a stronger acid than $HCl,HN{O}_3$
• C. $H_{2}S{O}_4$ is associated by more number of hydrogen bonds
• D. Both (A) and (B)

Answer 1

The correct option is C $H_{2}S{O}_4$ is associated by more number of hydrogen bonds

Sulphuric acid is highly viscous because its molecules form hydrogen bonds with each other and also with water. Thus, the overall movement of molecules gets reduced, making the liquid highly viscous.