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प्रश्न
Describe the reaction that show
Concentrated sulphuric acid is a dehydrating agent.
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उत्तर
Concentrated sulphuric acid as dehydrating agent as it removes water of crystallization of hydrated salts and renders them anhydrous.
\[\ce{CuSO4.5H2O ->[H2SO4] CuSO4 + 5H2O}\]
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संबंधित प्रश्न
Give two balanced reactions of each type to show the following properties of sulphuric acid:
Hygroscopic nature
Name the products formed when hot and concentrated sulphuric acid reacts with Copper.
Give reason for the following:
Concentrated sulphuric acid should not be added to oxalic acid or formic acid in the open laboratory.
Name the anion [negative ion] present in the following compound:
Compound D when warmed with dilute H2SO4 gives a gas which turns acidified potassium dichromate solution green.
State your observation for the following case :
Dry red rose petals are placed in the jar of sulphur dioxide.
State your observation for the following case:
Paper soaked in potassium permanganate solution is introduced into a gas jar of sulphur dioxide.
Give one equation to show the following property of sulphuric acid:
As a non-volatile acid
State two observations when
A few crystals of KNO3 are heated in a hard glass tube
The gas evolved when dilute sulphuric acid reacts with iron sulphide.
The property exhibited by concentrated sulphuric acid when it is used to prepare hydrogen chloride gas from potassium chloride is ______.
