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प्रश्न
Give reason for the following:
Concentrated sulphuric acid is kept in airtight bottles.
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उत्तर
Concentrated sulphuric acid absorbs water vapours from the atmosphere. Hence it should be kept in air tight bottles.
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संबंधित प्रश्न
Give two balanced reactions of the type to show the following property of sulphuric acid:
Oxidising agent
What would you observe in the following case?
Concentrated sulphuric acid is added to equal volumes of cold water.
What would you observe in the following case?
Dilute sulphuric acid is added to ferrous sulphate solution.
The following statement is correct only under certain conditions. Rewrite the statement including the appropriate conditions.
Oxalic acid reacts with sulphuric acid to produce carbon monoxide and carbon dioxide.
Write balanced equation for the reaction of dilute sulphuric acid with the following:
Lead nitrate solution
- Name the catalyst which helps in the conversion of sulphur dioxide to sulphur trioxide in step C.
- In the contact process for the manufacture of sulphuric acid, sulphur trioxide is not converted to sulphuric acid by reacting it with water. Instead a two-step procedure is used. Write the equations for the two steps involved in D.
- What type of substance will liberate sulphur dioxide from sodium sulphite in step E?
- Write the equation for the reaction by which sulphur dioxide is converted to sodium sulphite in step F.
Name the gas evolved in following case:
The gas produced by the action of concentrated sulphuric acid on sodium chloride.
Write the equation of the following reaction :
Concentrated sulphuric acid is poured over sugar
State your observation for the following case :
Moist blue litmus is introduced into a gas jar of sulphur dioxide.
Identify the gas evolved and give the chemical test in the following case:
Dilute hydrochloric acid reacts with sodium sulphite.
