The acid used in lead storage cells is A. Phosphoric acid B. Hydrochloric acid C. Nitric acid D. Sulphuric acid

The correct answer is D. Sulphuric acid.

Sulphuric acid is a strong acid that is used in a variety of applications, including lead storage cells. Lead storage cells are used in a variety of applications, including car batteries, backup power supplies, and emergency lighting.

Phosphoric acid is a weak acid that is used in a variety of applications, including food additives, fertilizers, and detergents. Hydrochloric acid is a strong acid that is used in a variety of applications, including metal etching, cleaning, and manufacturing. Nitric acid is a strong acid that is used in a variety of applications, including explosives, fertilizers, and manufacturing.