Final answer:
Distilled water with a pH of 7 is the substance most likely to be neutral compared to orange juice, milk, and vinegar, which have pH values less than 7.
Step-by-step explanation:
The substance most likely to be neutral among the given options is distilled water. In defining the acidity or basicity of a substance, the pH scale is used, where a pH of 7 is considered neutral, a pH less than 7 is considered acidic, and a pH greater than 7 is considered basic. Therefore:
- Orange juice is acidic as it typically has a pH less than 7.
- Milk is slightly acidic; however, its pH is closer to neutral than orange juice or vinegar.
- Distilled water is neutral with a pH of approximately 7.
- Vinegar is acidic as it has a pH well below 7.
Based on the information provided, distilled water, with a pH of 7, is the substance that is most likely to be neutral compared to the others mentioned.