In the following list of acids, separate strong acids from weak acids :
Strong Acid: Strong acids ionize completely in their aqueous solution and produce a maximum number of hydrogen ions. Mineral acids are generally strong acids.
Weak Acid: Weak acids do not ionize completely in their aqueous solution. Organic acids are generally weak acids.
Strong acid: Hydrochloric acid, Nitric Acid, Sulphuric Acid
Weak acid: Citric Acid, Acetic Acid, Formic Acid
So, the correct option is A