Question

batteries are filled with:
○ a. ascorbic acid.
○ b. sulfuric acid.
○ c. lactic acid.
○ d. hydrochloric acid.

Explanation:

Common lead - acid batteries are filled with sulfuric acid. Ascorbic acid is vitamin C and not used in batteries. Lactic acid is related to fermentation in living organisms and not a battery - filling substance. Hydrochloric acid is not typically used in batteries.

Answer:

B. Sulfuric acid