Which test would show positive results for orange juice?

To test for the presence of Orange Juice, a simple test for citric acid can be performed, as orange juice is high in citric acid. A pH test would show a low pH, indicating acidity. Additionally, a Benedict's test can indicate the presence of reducing sugars, which are found in orange juice. Finally, a test for vitamin C (ascorbic acid) could also yield positive results, as orange juice is a well-known source of this vitamin.