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प्रश्न
Give reason for the following:
Concentrated sulphuric acid should not be added to oxalic acid or formic acid in the open laboratory.
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उत्तर
Concentrated sulphuric acid should not be added to oxalic acid or formic acid as it removes water and forms carbon monoxide. Carbon monoxide is harmful for health so this addition must be done in an open laboratory.
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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.
Give balanced chemical equations for the action of sulphuric acid on the following:
Sulphur
Give one equation to show the following properties of sulphuric acid:
As a non-volatile acid
Which property of sulphuric acid is shown by the reaction of the concentrated sulphuric acid with ethanol?
Define the following term : Hygroscopic substance
Describe the reaction that show
Dilute sulphuric acid behaves as dibasic acid.
Choose the current answer from the options given below :
The catalyst used for the oxidation of SO2 to SO3 in contact process is
What do you see when concentrated sulphuric acid is added to copper sulphate-5-water ( You are not required to say what is happing, nor is it necessary to name the products.)
What property of sulphuric acid is shown by the reaction of concentrated sulphuric acid when heated with potassium nitrate?
State one appropriate observation of the following:
Concentrated sulphuric acid is added dropwise to a crystal of hydrated copper sulphate.
