Answer:
The answer and the explanation given below:
Step-by-step explanation:
The pH is a scale which is used to identify a solution whether it is acidic, basic or neutral. The pH scale ranges from 0 to 14. A pH 7.0 is neutral which is of pure water. The range from 0.0 to 6.9 is acidic due to presence of a high concentration of hydrogen ions (H⁺) in the solution as compared to pure water. The range 7.1 to 14.0 is basic due to presence of a low concentration of hydrogen ions (H⁺) in the solution as compared to pure water.
- The red or pink solutions labeled “2-4” will be acidic as per pH scale.
- The purple to blue solution labeled “7” will be neutral as per pH scale.
- The yellow-green solution labeled “11” will be basic or alkaline as per pH scale.