Which of the following Acid is present in Spinach ?

The correct answer is Oxalic acid.

Key Points

• Oxalic acid is found in spinach.
• Oxalic acid is a crystalline substance that dissolves in water to create a colorless solution.
• Food items such as spinach and cabbage, broccoli, parsley, and tomatoes contain it.
• Oxalic acid is extensively used as an acid rinse in laundries because it is good for removing rust and ink stains.
• It is the most basic dicarboxylic acid. It is a white crystalline substance that converts most insoluble iron compounds into soluble complex ions in water.​

Additional Information

• Tartaric acid is a white, crystalline organic acid found naturally in many fruits, including grapes, bananas, tamarinds, and citrus.
• Lactic acid is generated primarily by muscle cells and red blood cells. It is found primarily in dairy products.
• Citrus fruits, particularly lemons and limes, contain naturally occurring citric acid.
  • Citric acid in its synthetic form is extensively used as an additive in food, cleaning products, and nutritional supplements.
• The formic acid formula is written as HCOOH which contains two hydrogen atoms, and two oxygen atoms attached to only one central carbon atom.
  • Formic acid is obtained from red ants.