The salt formed from strong acid and a strong base is

When a strong acid and a strong base react with each other, they form a salt and water. Since both the acid and base are strong, they will fully dissociate into their respective ions in solution. When they react, the H+ ion from the acid combines with the OH- ion from the base to form water, while the remaining ions combine to form a salt. Since the salt is formed from a combination of cations and anions, it is neutral in nature. Therefore, the answer is "neutral".