Lactic Acid and Carbonic Acid are Referred to as Fixed

Question

Lactic acid and carbonic acid are referred to as fixed acids.

Accepted Answer

Lactic acid is considered a fixed acid because it is produced from the metabolism of glucose and can accumulate in the body, but carbonic acid is not classified as a fixed acid; it is considered a volatile acid because it can be converted to carbon dioxide gas and exhaled through the lungs.