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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
Write balanced chemical equations to show how SO3 is converted to Sulphuric acid in the contact process.
Name the following:
Products obtained by treating ferrous sulphide with dilute sulphuric acid.
Give reason for the following:
Concentrated sulphuric acid should not be added to oxalic acid or formic acid in the open laboratory.
Describe the reaction that show
Concentrated sulphuric acid is a non-volatile acid.
Write balanced equation for the reaction of dilute sulphuric acid with the following:
Copper carbonate
Write balanced equation for the reaction of dilute sulphuric acid with the following:
Zinc hydroxide
Copy and complete the following table.
Column 3 has the names of gases to be prepared using the substance you enter in column 1, along with dilute or concentrated sulphuric acid, as indicated in column 2.
| Column 1 | Column 2 | Column 3 |
| Substance reacted with acid | Dilute or concentrated sulphuric acid | Gas |
| Hydrogen | ||
| Carbon dioxide | ||
| Only chlorine |
Write the equation for the laboratory preparation of :
(i) Sodium sulphate using dilute sulphuric acid.
(ii) Lead sulphate using dilute sulphuric acid.
Write the equation of the following reaction :
Concentrated sulphuric acid is poured over sugar
Give a balanced chemical equation for the action of sulphuric acid on the following:
Potassium hydrogen carbonate
Give a chemical test to distinguish between dilute sulphuric acid and dilute hydrochloric acid (using lead nitrate solution).
