Classification based on source, we have
Organic acids – from fruits and vegetables.
Inorganic acids – prepared in the laboratory.
Classification based on ionization
Strong acid – it ionizes completely in solution e.g HCL, H2SO4 etc.
Weak acid – it ionizes partially in solution e.g/ CH3 COOH1 CH3 CH2 COOH1 ETC.
Note: We also have concentrated and dilute acids based on the amount of dilution.
NEVER ADD WATER TO ACID BUT ADD ACID TO WATER WHILE DILUTING.