Download 1 Solid State - Unique Solutions

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Transcript
473
K 4 Fe(CN) 6 + 6H 2SO 4 + 6H 2 O ⎯⎯
→ 2K 2SO 4 + FeSO 4 + 3(NH 4 ) 2SO 4 + 6CO
3KClO 3 + 3H 2SO 4 ⎯⎯
→ KHSO 4 + HClO 4 + 2ClO 2 + H 2O
(5) Action as a sulphonating agent.
C 6 H 6 + HOSO 2 OH ⎯⎯
→ C 6 H 5SO 2 OH + H 2 O
Benzene Sulphonic acid
(6) Action of PCl5
HOSO 2OH + PCl 5 ⎯⎯
→ ClSO 2 OH + POCl 3 + HCl
chlorosulphuric acid
ClSO 2OH + PCl 5 ⎯⎯
→ ClSO 2Cl + POCl 3 + HCl
sulphuryl chloride
(7) Metals below hydrogen in electro chemical series displace hydrogen from dilute
acid. e.g.
Mg, Zn, Fe e.g. Mg + H 2SO 4 ⎯⎯
→ MgSO 4 + H 2(g)
Cu, Pb, Hg, Bi and noble metals do not react with dilute acid
(8) It reacts with CaF2.
CaF2 + H 2SO 4 ⎯⎯
→ CaSO 4 + 2HF.
5. Uses of Sulphuric acid :
(a) Sulphuric acid is used for making dyes, detergents, explosives, fertilizers.
(b) It is used in chemicals like HNO3, HCl, H3PO4.
(c) It is used in lead storage batteries.
(d) Sulphuric acid is used as dehydrating agent.
(e) It is used in refining in petroleum industry.
(f) Also used as a pickling agent in removing layers of metal oxides before electroplating,
galvanising and soldering.
(j) Oxoacids of sulphur :
1. They are grouped in five series.
(a) H2SO2
Sulphoxylic acid series
(b) H2SO3, H2S2O2, H2S2O4, H2S2O5
Sulphurous acid series
(c) H2SO4, H2S2O3, H2S2O7
(d) H2SO5, H2S2O8
Sulphuric acid series
Peroxy sulphuric acid series
(e) H2S2O6, H2SnO6
Thionic acid series
Chapter - 7 p – Block Elements