RRB RPF RPSF SI and CONS Model Papers 8 with solutions

(4) Tartaric acid is a white crystalline organic acid. It occurs naturally in many plants, particularly grapes, unripe man-goes and tamarinds, and is one of the main acids found in wine. It is added to other foods to give a sour taste, and is used as an antioxidant. Oxalic acid is found in spinach.