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प्रश्न
Give main difference between drying agent and dehydrating agent.
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उत्तर
Difference between Drying agent and dehydrating agent:
| S.NO. | Drying agent | Dehydrating agent |
| 1. | Drying agent removes superficial water sticking to the surface of a given substance. | Dehydrating agent removes atoms of hydrogen and oxygen in the form of water molecules from the composition of a substance. |
| 2. | Drying agent brings about a physical chnge. | Dehydrating agent brings about chemical change. |
| 3. | No change in the chemical composition of a substance takes place when drying agent is used. | The dehydrating agent brings about a change in the chemical composition of a substance. |
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संबंधित प्रश्न
Give one equation to show the following properties of sulphuric acid:
As a non-volatile acid
Name the products formed when hot and concentrated sulphuric acid reacts with Sulphur.
Name the following:
Products obtained by treating zinc with dilute sulphuric acid.
Name the following:
The precipitate obtained by treating aqueous barium chloride with dilute sulphuric acid.
Give reason for the following:
When solution of sulphur dioxide is exposed to air, it gets converted to sulphuric acid.
Why is sulphuric acid known as king of chemicals and oil vitriol ?
Write balanced equation for the reaction between iron and dilute sulphuric acid.
Write balanced equation for the reaction of dilute sulphuric acid with the following:
Copper carbonate
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.
Give a balanced chemical equation for the action of sulphuric acid on the following:
Sulphur
