Which one of the following best describes an acid?

a. a substance that isn't soluble in water
b. a substance that produces hydrogen ions in a water solution
c. a substance that produces hydroxide ions in a water solution
d. a substance that reacts with other acids

Option (B) is the correct answer.

Explanation:

According to Bronsted-Lowry definition, acid are the species that are able to give hydrogen or ions when dissolved in a solution.

For example,

Whereas bases are the species that are ale to give hydroxide or ions when dissolved in a solution.

Thus, we can conclude that out of the given options, a substance that produces hydrogen ions in a water solution best describes an acid.

the answer is c

tell me if wrong