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प्रश्न
Define the following term : Hygroscopic substance
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उत्तर
Hygroscopic substance : The compound which absorbs water vapour from the atmosphere.
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संबंधित प्रश्न
State one relevant observation for given reactions:
Action of concentrated Sulphuric acid on hydrated copper sulfate
Write balanced chemical equations to show : The oxidizing action of conc. Sulphuric acid on carbon
Define the following term : Dehydrating agent
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
Which concentrated acid oxidizes sulphur directly to sulphuric acid ? Write the equation for the same. What is the name of the process by which sulphuric acid is manufactured ? Name the catalyst used in the process.
Write the equation of the following reaction:
Sulphur is heated with concentrated sulphuric acid.
What property of sulphuric acid is shown by the reaction of concentrated sulphuric acid when heated with :
(i) Potassium nitrate
(ii) carbon
Give a balanced chemical equation for the action of sulphuric acid on the following:
Sulphur
The gas evolved when dilute sulphuric acid reacts with iron sulphide.
