Step 1: Reaction Analysis:
Tamarind juice exhibits an acidic characteristic, evidenced by its ability to turn blue litmus paper red. This color transformation from blue to red signifies the presence of an acid.
Step 2: Acid Identification:
Tamarind juice derives its acidity from a naturally occurring acid. The specific acid is tartaric acid, a weak organic acid prevalent in tamarind, grapes, and other fruits.
Step 3: Determination:
The acid in tamarind juice responsible for the color change of blue litmus paper to red is tartaric acid.