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प्रश्न
Rewrite the following statement by adding the correct word, as shown in the example:
|
Example: Given Statement: Ammonia changes moist red litmus to blue. Correct Statement: Aqueous ammonia changes moist red litmus to blue. |
Sulphuric acid acts as a dehydrating agent.
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उत्तर
Concentrated sulphuric acid acts as a dehydrating agent.
Explanation:
Conc. \[\ce{H2SO4}\] has a strong affinity for water and so reduces it from the molecule, whereas dilute acid dissolves in water.
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संबंधित प्रश्न
Write a balanced chemical equation for the following:
Action of concentrated sulphuric acid on Sulphur.
Give one equation to show the following properties of sulphuric acid:
Dehydrating property
Define the following term : Hygroscopic substance
Give reason for the following:
When carbon is heated with concentrated sulphuric acid, carbon dioxide is formed.
Describe the reaction that show
Concentrated sulphuric acid is a non-volatile acid.
Describe the reaction that show
Dilute sulphuric acid behaves as dibasic acid.
Give reason for the following:
Concentrated sulphuric acid is kept in airtight bottles.
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.
Write the equation for the laboratory preparation of the following salts, using sulphuric acid.
Sodium Sulphate from sodium carbonate.
