Question

Which of the following acids is commonly used in batteries of cars?
A. Sulphuric Acid
B. Nitric Acid
C. Hydrochloric Acid
D. Acetic Acid

Answer 1

Hint:
For the battery of a car high concentration of \[{H^ + }\] ions is required. So we require such acid which dissociates completely in water.

Complete Step By Step Solution:
Sulphuric acid has very strong acidic properties. Sulphuric acid also acts as a very strong oxidizing agent when its concentration is high. As Sulphuric acid is a very strong acid it completely dissociates in water and produces high concentration of \[{H^ + }\] ions.
Sulphuric acid reacts with lead and water to produce lead sulphate during discharge of battery. And in case of recharge of battery reaction is reversed.
So the correct answer is sulphuric acid that means sulphuric acids are used in batteries of cars.
So the correct option is (1).

Note:
This complete dissociation allows more hydrogen ions to act as movable charge carriers, to move towards the positive terminal, to close the circuit and enable electric flow. Hence producing strong electrical conductivity.