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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
State your observations when Concentrated Sulphuric acid is added to Sugar Crystals
Distinguish between the given pairs of compounds using the test given within brackets:
Dilute sulphuric acid and dilute hydrochloric acid (using barium chloride solution)
Give a chemical test to distinguish between dilute sulphuric acid and dilute hydrochloric acid.
Give examples of the use of sulphuric acid as
An oxidizing agent
Sulphuric acid can be used to prepare a number of gases in the laboratory. Write balanced equation for the reaction from which the folllowing gas are obtained, using dilute sulphuric acid as one of the reactant : Hydrogen
Sulphuric acid can be used to prepare a number of gases in the laboratory. Write balanced equation for the reaction from which the folllowing gas are obtained, using dilute sulphuric acid as one of the reactant : Sulphur dioxide
What would you see, when a crystal of CuSO4.5H2O is placed in concentrated sulphuric acid? Give reason to explain your observation.
State one appropriate observation of the following:
Concentrated sulphuric acid is added dropwise to a crystal of hydrated copper sulphate.
Dilute sulphuric acid will produce a white precipitate when added to a solution of ______.
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.
