What has a pH level of less than 7?

Acid

Bases

Neutral

Answer: Option (a) is the correct answer.

Explanation:

A substance with pH less than 7 represents an acid. They will be sour in taste because they are acidic in nature.

A substance with pH greater than 7 represents a base. They will be bitter in taste as they are basic in nature.

Whereas a substance with pH equal to 7 represents a neutral substance. They will be tasteless.