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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
Identify the acid in the following case:
The acid which produces sugar charcoal from sugar.
Give appropriate scientific reasons for The electrical conductivity of acetic acid is less in comparison to the electrical conductivity of dilute sulphuric acid at a given concentration.
Name the products formed when hot and concentrated sulphuric acid reacts with Sugar.
Name the products formed when hot and concentrated sulphuric acid reacts with Carbon.
Give reason for the following:
Concentrated sulphuric acid should not be added to oxalic acid or formic acid in the open laboratory.
Describe the reaction that show
Dilute sulphuric acid behaves as dibasic acid.
Give examples of the use of sulphuric acid as
Non-volatile acid
Give reason for the following:
Concentrated sulphuric acid is kept in airtight bottles.
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
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.
