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प्रश्न
State the observation for the following, when:
Concentrated sulphuric acid is added to carbon.
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उत्तर
Sulphuric acid is a strong oxidising agent. When it is added to carbon it oxidises carbon and the evolution of colourless gas are observed. This gas is carbon dioxide along with sulphur dioxide gas. The reaction is given as:
\[\ce{C + 2H2SO4 -> CO2↑ + 2H2O + 2SO2↑}\]
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संबंधित प्रश्न
Give reasons for the following:
Brisk effervescence is seen when oil of vitriol is added to sodium carbonate.
Distinguish between the following pairs of compounds using the reagent given in the bracket.
Ferrous sulphate solution and ferric sulphate solution. (Using sodium hydroxide solution)
How are the following conversion brought about? Give equation and condition:
Aqueous lead nitrate to lead sulphate.
Give examples of the use of sulphuric acid as
An electrolyte in everyday use
How will you distinguish between conc. HCl and conc. H2SO4?
Choose the current answer from the options given below :
Which of the following gas dissolves in H2SO4 to give alum?
Some properties of sulphuric acid are listed below. Choose the property A, B, C or D which is responsible for the reaction (a) to (e). Some properties may be repeated.
A. Acid
B. Dehydrating agent
C. Non-volatile acid
D. Oxidizing agent
(a) \[\ce{C12H22O11 + nH2SO4 -> 12C + 11H2O + nH2SO4}\]
(b) \[\ce{S + 2H2SO4 -> 3SO2 + 2H2O}\]
(c) \[\ce{NaCl + 2H2SO4 -> NaHSO4 + HCl}\]
(d) \[\ce{CuO + 2H2SO4 -> CuSO4 + H2O}\]
(e) \[\ce{Na2CO3 + H2SO4 -> Na2SO4 + H2O + CO2}\]
Sulphuric acid is manufactured by the contact process.
Name the chemical used to dissolve SO3 and also name the product formed. Give all the main reactions to this process.
Write a balanced chemical equation:
When hot and concentrated sulphuric acid reacts with the carbon.
What property of Sulphuric acid is exhibited in the following case?
In the preparation of HCI gas when it reacts with Sodium chloride.
