The preservative used in colored juices for preservation is

Solution(By Examveda Team)

The preservative used in colored juices for preservation is Benzoic acid.
Benzoic acid is an organic compound that is described by the chemical formula C₆H₅COOH. It consists of a carboxyl group attached to a benzene ring. It is a commonly used antimicrobial preservative in food and beverages, especially in carbonated beverages, as it presents its strongest antibacterial activity at pH 2.5 - 4.0. BA has inhibitory effects on the proliferation of bacteria and yeasts, a major cause of food spoilage.