Question

Which acid is used in a car battery?

• A. Dilute sulphuric acid
• B. Dilute hydrochloric acid
• C. Dilute nitric acid
• D. None of these

Answer 1

The correct option is A

Dilute sulphuric acid

Exaplanation for correct option:

A. Dilute sulphuric acid

Acid in car battery:

• The acid that is used in car batteries is sulfuric acid.
• The chemical formula of sulfuric acid is ${\mathrm{H}}_2{\mathrm{SO}}_4$.
• The structure of sulfuric acid is given below.

• Sulfuric acid serves as an electrolyte in a combination with water.
• Sulfuric acid $\left({\mathrm{H}}_2{\mathrm{SO}}_4\right)$ has a pH of $0.5$ at ${25}^{\mathrm{o}}\mathrm{C}$ at a concentration of $33.5\%$, which is equal to the concentration of sulfuric acid that is used in lead-acid batteries.

Hence, option A is correct i.e. Dilute sulphuric acid.