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प्रश्न
Give a balanced chemical equation for the action of sulphuric acid on the following:
Sulphur
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उत्तर
\[\ce{S + 2H2SO4 -> 3SO2 + 2H2O}\]
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संबंधित प्रश्न
Quicklime is not used to dry HCl gas because _____.
Name the products formed when hot and concentrated sulphuric acid reacts with Carbon.
Name the following:
Products obtained by treating ferrous sulphide with dilute sulphuric acid.
What would you observe in the following case?
Dilute sulphuric acid is added to ferrous sulphate solution.
How are the following conversion brought about? Give equation and condition:
Dilute sulphuric acid to hydrogen.
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 for the laboratory preparation of the following salts, using sulphuric acid.
Copper sulphate from copper.
A, B, C and D summarize the properties of sulphuric acid depending on whether it is dilute or concentrated. Choose the property (A, B, C or D), depending on which is relevant to each of the preparations (i) to (ii).
A. Dilute acid (typical acid properties)
B. Non-volatile acid
C. Oxidizing agent
D. Dehydrating agent
(i) Preparation of hydrogen chloride.
(ii) Preparation of ethane from ethanol
(iii) Preparation of copper sulphate from copper oxide.
In the given equation identify the role played by concentrated sulphuric acid S + 2H2SO4→ 3SO2 + 2H2O
Give two balanced reactions of the type to show the following property of sulphuric acid:
Dehydrating nature
