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प्रश्न
Why is H2SO4 is not used as a drying agent for H2S?
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उत्तर
Sulphuric acid is not used as a drying agent for H2S because it reacts with H2S to form sulphur.
\[\ce{H2SO4 + H2S -> 2H2O + SO2 + S↓}\]
संबंधित प्रश्न
State the conditions required for the given reaction to take place:
Any two conditions for the conversion of sulphur dioxide to sulphur trioxide
Give two balanced reactions of each type to show the following properties of sulphuric acid:
Hygroscopic nature
What would you observe in the following case?
Concentrated sulphuric acid is added to equal volumes of cold water.
Choose the current answer from the options given below :
The catalyst used for the oxidation of SO2 to SO3 in contact process is
What do you see when concentrated sulphuric acid is added to copper sulphate-5-water ( You are not required to say what is happing, nor is it necessary to name the products.)
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.
What would you observe in the following case:
Sugar crystals are added to a hard glass test tube containing concentrated sulphuric acid.
What property of sulphuric acid is shown by the reaction of concentrated sulphuric acid when heated with :
(i) Potassium nitrate
(ii) carbon
Give balanced chemical equation to prepare the following salt:
Lead sulphate from lead carbonate
Differentiate between the following pair based on the criteria given in the bracket:
Cane sugar and hydrated copper sulphate [using concentrated H2SO4]
