Which of the following acids serves as an electrolyte in a lead storage battery? A. Sulphuric acid B. Lactic acid C. Hydrochloric acid D. Nitric acid

Sulphuric acid
Lactic acid
Hydrochloric acid
Nitric acid

The correct answer is A. Sulphuric acid.

A lead storage battery is a type of rechargeable battery

that uses lead and lead dioxide as electrodes. The electrolyte is a solution of sulfuric acid. When the battery is discharged, the lead sulfate from the electrodes dissolves in the electrolyte. When the battery is recharged, the lead sulfate is converted back to lead and lead dioxide.

Lactic acid is a type of organic acid that is produced by the body during fermentation. It is also found in sour milk and yogurt. Hydrochloric acid is a strong acid that is used in many industrial processes. Nitric acid is a strong acid that is used in many manufacturing processes.

Sulphuric acid is the most common electrolyte used in lead storage batteries. It is a strong acid that has a high electrical conductivity. It is also relatively inexpensive and easy to obtain.