Step-by-step explanation:
When pH of a solution is less than 7 then the solution is considered acidic in nature.
Whereas when pH of a solution is more than 7 then the solution is considered basic in nature.
On the other hand, when pH of a solution is equal to 7 then the solution is considered neutral.
Hence, we can conclude that pH is the quantity about which we can tell whether a solution is acidic or basic.