Which of the following statements about the commonly used automobile battery are true? I. It is usually a lead-acid battery II. It has six cells with a potential of 2 volt each. III. Its cells work as Galvanic Cells while discharging power. IV. Its cells work as electrolytic cells while recharging Select the correct answer using the code given below:

The commonly used automobile battery is a lead-acid battery, which is a secondary (rechargeable) storage device [t9][t10]. A standard 12V car battery is composed of six individual cells connected in series, with each cell providing a nominal potential of approximately 2 volts [t2][t4]. During the discharge process, the battery functions as a Galvanic (or voltaic) cell, converting stored chemical energy into electrical energy through spontaneous redox reactions [t7][t8]. Conversely, during the recharging process, an external electrical source (like an alternator) forces the chemical reactions to reverse; in this state, the cells function as electrolytic cells [t7][t8]. The net reaction involves lead (Pb), lead dioxide (PbO2), and sulfuric acid (H2SO4) [t3][t6]. Since all four statements are scientifically accurate descriptions of the lead-acid battery's construction and electrochemical operation, option 1 is correct.

Sources

1. [1] https://core.ac.uk/download/pdf/291575382.pdf