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प्रश्न
Sulphuric acid can be used to prepare a number of gases in the laboratory. Write balanced equation for the reaction from which the folllowing gas are obtained, using dilute sulphuric acid as one of the reactant : Sulphur dioxide
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उत्तर
Sulphur dioxide :
\[\ce{Na2SO3 + H2SO4 -> Na2SO4 + H2O + SO2}\]
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