Answer:
E) less than 7
Explanation:
pH is defined as the negative logarithm of the concentration of hydrogen ions.
Thus,
pH = - log [H⁺]
pH scale generally runs from 1 to 14 where pH = 7 represents neutral medium, pH < 7 represents acidic medium and pH > 7 represents basic medium.
Strong acids dissociate completely and when they react with base they form a salt of weak base and strong acid.
For example, [tex]BOH[/tex] is a weak base and [tex]HCl[/tex] is the hydrochloric acid.
So,
[tex]BOH+HCl\rightarrow BCl+H_2O[/tex]
Thus, the salt is of weak base and strong acid which corresponds to pH less than 7.
