Question

In a car battery, plates of lead and lead dioxide are immersed in a liquid, L. A chemical reaction occurs leading to the production of lead sulphate and water. What kind of a liquid is L likely to be?
A. An acid
B. A base
C. Salt solution
D. Distilled water

Answer 1

Answer:

A.}An acid.

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Answer 2

The liquid L which is the correct answer to the given question is option A: An acid.

• From the products of the chemical reaction, we can make out the type of reactants used in the chemical process.
• In this case, the products are lead sulfate and water. Lead sulfate here is the salt that is formed from the reaction between lead metal and a compound containing sulfate.
• However, salt and water are obtained as the end product of the reaction when an acidic substance undergoes a reaction chemically with metal and oxides of metal.
• Therefore the liquid L is an acidic substance that reacts with the metallic compound lead.
• This acidic compound forms salt of sulfate hence, the acidic compound is Sulphuric acid.
• The reaction is shown below:

• Acid or Liquid L (Sulphuric Acid) + Lead + Lead oxide => Lead sulphate (salt) + Water

• Hence, liquid L is acid used in car batteries.