42. The acid used in lead storage cells is A.Phosphoric acid B.Hydrochloric acid C.Nitric acid D.Sulphuric acid
Answer: Option D Solution: Dilute sulfuric acid {H2SO4} serves as the electrolyte in a lead storage battery. The electrodes of the cells in a lead storage battery consist of lead grids. The openings of the anodic grid is filled with spongy (porous) lead. The openings of the cathodic grid is filled with lead dioxide {PbO2}.
