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प्रश्न
Which concentrated acid oxidizes sulphur directly to sulphuric acid ? Write the equation for the same. What is the name of the process by which sulphuric acid is manufactured ? Name the catalyst used in the process.
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उत्तर
Hot concentrated nitric acid oxidizes sulphur directly into sulphuric acid.
\[\ce{S + 6HNO3 ->[\Delta] H2SO4 + 6NO2 + 2H2O}\]
The name of the process by which sulphuric acid is manufactured is contact process.
Vanadium pentoxide is the catalyst used during the process.
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संबंधित प्रश्न
Give two balanced reactions of the type to show the following property of sulphuric acid:
Oxidising agent
Give a chemical test to distinguish between dilute sulphuric acid and dilute hydrochloric acid.
Name the anion [negative ion] present in the following compound:
Compound D when warmed with dilute H2SO4 gives a gas which turns acidified potassium dichromate solution green.
Write balanced equation for the reaction of dilute sulphuric acid with the following:
Lead nitrate solution
State one appropriate observation of the following:
Concentrated sulphuric acid is added dropwise to a crystal of hydrated copper sulphate.
Give one equation to show the following property of sulphuric acid:
Acidic nature
Dilute sulphuric acid will produce a white precipitate when added to a solution of ______.
Write the observation for the following:
Decomposition of bicarbonates by dil. H2SO4.
\[\ce{2NaHCO3 + H2SO4 -> Na2SO4 + 2H2O + 2CO2}\]
Give two balanced reactions of the type to show the following property of sulphuric acid:
Dehydrating nature
The gas evolved when dilute sulphuric acid reacts with iron sulphide.
