Oxidation state of sulphur atom and respective oxy-acids:
Oxidation state | Series name | Prefix of acid | Name of acids |
(+2) | “us”series | Hypo | Hyposulphurous acid |
(+4) | “us”series | ……. | Sulphurous acid |
(+5) | “ic”series | Hypo | Hyposulphuric acid |
(+6) | “ic”series | ……. | Sulphuric acid |
(+7)/(+8)Cal/ava | “ic”series | Peroxy | Peroxysulphuric acid |
Important Note:
(1) Ortho and meta form of sulphurous and sulphuric acid not exist but both have pyro form only.
(2) Hyposulphurous acid start thionous series and while hyposulphuric acid start thionic series;
(1) Sulphurous Series:
(A) Sulphurous acid:
(B) Hyposulphurous acid(H2SO2/S(OH)2):
(C) Thiosulphurous acid(H2S2O2):
(D) Pyrosulphurous acid(H2S2O5=H2SO3+SO2):
(2) Sulphuric acid series:
(A) Sulphuric acid(H2SO4):
(B) Pyrosulphuric acid(H2S2O7=H2SO4+SO3): Oleum:
(C) Peroxomonosulphuric acid(H2SO5):Caro’s acid:
(D) Peroxodisulphuric acid(H2S2O8): Marshall’s acid:
(3) Thionous acid series
(4) Thionic acid series:
(A) Dithionic acid(H2S2O6):
(B) Trithionic acid (H2S3O6):
(C) Tetrathionic acid(H2S4O6):
Related Topics:
(2) What are "Ortho" or "Meta" oxyacids?
(3) What are "pyro" oxy acids?
(6) Prefix “Hypo-acids”, and “Per-acids”:
Related Questions:
(1) What is Use of Boric Acid?
(2) What is use of Orthoboric acids?
(3) What is basicity of "Boric acid" ?
(4) Why Boric acid exist in solid state ?
(5) What is structure of solid Ortho Boric acid ?
(6) What is effect of heat on Borax?
(7) What is the structure of trimetaboric acid and trimetaborate ion?
(8) What is the Sodium per borate ,give the structure and its uses?
(9) Why aqueous solution of borax reacts with two moles of acids ?
(10) What is the molecular formula of Borax ?
(11) Why Boric acid become strong acid in the presence of cis 1,2-diol or 1,3-diol ?
(12) Why Borazine is more reactive than benzene towards Electrophic Aromatic substitution reactions ?
(13) Why Borazine (B3N3H6) is also known as inorganic benzene ?.
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