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How is sulphuric acid prepared by lead chamber process? Give its principles. |
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Answer» In this process SO2 is obtained by brning sulpher or Iron pyrites in air S + O → SO2 4FeS2 + 11O2 → 2Fe2O3 + 8SO2 The obtained SO2 is oxidised SO2 + NO2 → SO3 + NO into SO3 by NO3 The obtained SO3 is treated is less then chamber crystals are formed. 2SO2 + NO + NO2 + H2O + O2 → 2(OHSO2.O.NO) When champer crystals are appeared the flow of water vapours increases. As a result of this H2SO4 is obtained 2(OHSO2.O.NO) + H2O → 2H2SO4 + NO + NO2 |
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