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प्रश्न
Define the following term : Dehydrating agent
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उत्तर
Dehydrating agent : The compound which has more affinity for water. It removes atoms of hydrogen and oxygen in the form of waterfrom the composition of a substance.
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संबंधित प्रश्न
A, B, C, and D summarize the properties of sulphuric acid depending on whether it is dilute or concentrated.
A = Typical acid property
B = Non volatile acid
C = Oxidizing agent
D = Dehydrating agent
Choose the property (A, B, C or D) depending on which is relevant to each of the following
1) Preparation of Hydrogen chloride gas
2) Preparation of Copper sulphate from copper oxide.
3) An action of conc. Sulphuric acid on Sulphur.
Quicklime is not used to dry HCl gas because _____.
What would you observe in the following case?
Hot concentrated sulphuric acid is added to sodium chloride crystals.
Describe the reaction that show
Concentrated sulphuric acid behaves as oxidizing agent.
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:
Potassium hydrogen carbonate
Write balanced chemical equation to show :
The oxidizing action of conc.sulphuric acid on carbon
Write the balanced chemical equation for the following conversion:
Lead sulphate from lead nitrate solution and dilute sulphuric acid.
Dilute hydrochloric acid and dilute sulphuric acid are both colourless solutions. How will the addition of barium chloride solution to each help to distinguish between the two?
Name the acid formed when sulphur dioxide dissolves in water.
