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Which of the following acids is known as battery acid that is used in car batteries.
A.${H_2}S{O_4}$
B.$HCl$
C.$HN{O_3}$
D.${N_3}P{O_4}$

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Last updated date: 13th Jun 2024
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Answer
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Hint:In the given question firstly we have to observe that the lead battery has a very specific kind of working. In the basic model for the battery the acid is basically responsible for forming the working and active electrolytic solution. By the properties of relative stability in water and the dissolution nature, the best option is the sulphuric acid.

Complete step by step answer:
In the given question we have to first find out the work that the acid basically completes in the battery process.

In the battery the acid is basically responsible to be used in a dilute content so that it would work as a much active electrolyte as the strength of the ion generation ( both ones, anion and cation ) are increased on the addition of the acid.

Therefore basically in the case of the lead batteries better the dissolution power of the acid along with the relative stability, more it is ideal for the battery.

Though $HCl$ is perhaps the strongest acid but it is relatively non ideal due to the vigorous reaction it shows.
So that keeps the ${H_2}S{O_4}$ in the line next.

Lead acid batteries are basically made of the plates of lead. They also have separate plates of lead dioxide. These plates are also submerged into an electrolyte solution of about $38\% $ sulphuric acid and \[62\% \] water.

Hence the correct option is option A, ${H_2}S{O_4}$ .


Note:The lead–acid battery was invented in \[1859\] by French physicist Gaston Planté and is the earliest type of rechargeable battery. Despite having a very low energy-to-weight ratio and a low energy-to-volume ratio, its ability to supply high surge currents means that the cells have a relatively large power-to-weight ratio.