Answer:
Acid.
Explanation:
Acids may be defined as the substance that has the ability to release hydrogen ions in the solution. Acids has pH less than seven on the pH scale.
The orange juice has pH of 4. The pH of orange juice is less than seven. Hence, the orange juice is acidic in nature. Acids has the ability to convert the solution into the red color by the use of pH solution.
Thus, the correct answer is acid.
Considering the definition of pH, If orange juice has a pH of 4, then it can be described as acid.
pH is the Hydrogen Potential. It is a measure of acidity or alkalinity that indicates the amount of hydrogen ions present in a solution or substance.
Mathematically, pH is calculated as the negative base 10 logarithm of the activity of hydrogen ions:
pH= - log [H⁺]
The numerical scale that measures the pH of substances includes the numbers from 0 to 14. The pH value 7 corresponds to neutral substances. Acidic substances are those with a pH lower than 7, while basic substances have a pH higher than 7.
If orange juice has a pH of 4, then it can be described as acid.
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