Question

What is a strong acid?

Answer 1

A compound with a proton `"H"^(+)` that is easily dissociated (removed) into solution. Another way of looking at this is by considering the pH. A pH < 3-4 at `25^@ "C"` is considered strongly acidic.

Explanation:

Generally a compound that loses a proton `"H"^(+)` in an acid-base reaction which forms a weak (stable) conjugate base in turn is considered a strong acid.