JAMB - Chemistry (2007 - No. 18)

Tartaric acid is used industrially as an acidulant in food products like carbonated drinks, jellies, and baking powder, as well as in metal cleaning and polishing processes due to its chelating properties; it also finds applications in textile processing and certain photographic development procedures. 

The major industrial use of tartaric acid is as an acidulant in the food and beverage industry, primarily used to add a tart flavour to products like carbonated drinks, fruit jellies, candies, and wine, often in combination with other acids to achieve the desired taste profile; it is also used as a leavening agent in baking due to its reaction with baking soda when heated.