Classification
by type: inorganic (HCl, HBr, H2SO4)
and organic (CH3COOH).
Classification by composition: binary (HCl, HBr) and oxyacids (H2SO4,
HNO3,
HClO4, H2CO3).
Classification
by strength: Strong (HCl, HBr, H2SO4) and weak (H2S,
H2CO3,
CH3COOH).
Classification by the number
of hydrogen in it: monoprotic (HBr, HNO3, HClO4, CH3COOH),
diprotic (H2SO4, H2CO3) and polyprotic (H3PO4).