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प्रश्न
Write chemical reactions for different steps in the manufacture of sulphuric acid by lead chamber process. Draw the structure of phosphorous pentachloride
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उत्तर
2SO2 + O2 +2H2O`overset("No" )(->)`2H2SO4
The above net reaction can be written as the sum of the following reactions taking place in different steps.
1) 2H2O +NO `rightarrow` HNO3 +3H+
2) S + O2 `rightarrow` SO2 (Oxidation of sulphur)
3) 2HNO3 + 2SO2 `rightarrow` H2O +NO +NO2 +2SO3
Nitric acid or NO2 is used to oxidize SO2 to SO3.
Or SO2 +NO2 `rightarrow` SO3 + NO
4) SO3 +H2O `rightarrow` H2SO4
Sulphur trioxide reacts with water to form H2SO4 .
Structure of phosphorous pentachloride :
Phosphorous has 5 valence electrons. Each electron is shared with a chlorine atom.
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संबंधित प्रश्न
What is molecular formula of oleum?
(a) H2SO3
(b) H2SO4
(c) H2S2O7
(d) H2S2O8
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H2SO4
Mention three areas in which H2SO4 plays an important role.
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Describe the manufacture of H2SO4 by contact process?
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What happens when dilute sulphuric acid is treated with CaF2
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2) Write the structures of (A) and (B).
3) Why does gas (A) change to solid on cooling?
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In the manufacture of sulphuric acid by contact process Tyndall box is used to ____________.
Hot conc. \[\ce{H2SO4}\] acts as the moderately strong oxidising agent. It oxidises both metals and non-metals. Which of the following element is oxidised by conc. \[\ce{H2SO4}\] into two gaseous products?
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(ii) In peroxosulphuric acid \[\ce{(H2SO5)}\] sulphur is in +6 oxidation state.
(iii) Iron powder along with \[\ce{Al2O3}\] and \[\ce{K2O}\] is used as a catalyst in the preparation of \[\ce{NH3}\] by Haber’s process.
(iv) Change in enthalpy is positive for the preparation of \[\ce{SO3}\] by catalytic oxidation of \[\ce{SO2}\].
The number of dative bonds in sulphric acid molecule is ______.
