Question

Which of the following statements about $H_{2}S{O}_4$ is correct?

1.Sulphuric acid is an oily hygroscopic liquid.
2.Sulphuric acid has very low boiling point.
3.$H_{2}S{O}_4$ is a non-polar compound.
4.$H_{2}S{O}_4$ is used as electrolyte in lead-acid batteries.

• A. 3 and 4
• B. 1, 2, and 3
• C. 1 and 4
• D. Statement 1 only

Answer 1

The correct option is C

1 and 4

1. Sulphuric acid is an oily hygroscopic liquid. This is correct.
2. Sulphuric acid has a boiling point of 338 ${}^{o}C$ which is quite high. Hence, statement 2 is incorrect.
3. Due to the differences in electronegativity of hydrogen, sulphur and oxygen atoms inside the sulphuric acid molecule, it is polar in nature. Hence, statement 3 is incorrect.
4. $H_{2}S{O}_4$ is used as an electrolyte in lead-acid batteries. This statement is also correct.

Therefore the correct statements are 1 and 4.