Oxidation state HCl, H2SO4, H2SO3, HNO3, HNO2, H2SiO3, H2S, HBr, H3PO4.

HCl (H+ Cl-)
H2SO4 (H+ S6+ O2-)
H2SO3 (H+ S4+ O2-)
HNO3 (H+ N5+ O2-)
HNO2 (H+ N4+ O2-)
H2SiO3 (H+ Si4+ O2-)
H2S (H+ S2-)
HBr (H+ Br-)
H3PO4 (H+ P5+ O2-)



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