Answer: Below 7 at pH meter scale and above 7 at pH meter scale.
Explanation:
Any substance cab be defined as the acid when it lies below 7 on the pH meter. Ranging from 7 to 1 is the acidity of the substances.
The substances that ranges 6 is less acidic as compared to the substances that are less than 6.
The substances that are above 7 at the pH meter is known as basic substances. More you move towards higher value more basic the substances will.
