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प्रश्न
Concentrated sulphuric acid is both an oxidizing agent and a non-volatile acid. Write one equation. Each illustrates the above-mentioned properties of sulphuric acid.
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उत्तर
- Oxidising agent: Concentrated sulphuric acid as an oxidising agent oxidises carbon to carbon dioxide.
\[\ce{\underset{Carbon}{C} + 2H2HO4 -> \underset{Carbon dioxide}{CO2} + 2SO2 + 2H2O}\] - Non-volatile acid: Concentrated sulphuric acid has a high boiling point (338°C) that is why it is said to be a non-volatile compound; therefore, it is used for preparing volatile acids like hydrochloric acids and nitric acids from their salts by double decomposition.
\[\ce{H2SO4 + NaCl -> NaHSO4 + HCl}\]
संबंधित प्रश्न
How does sulphuric acid occur in nature?
Name the following:
Products obtained by dissolving sulphur dioxide and chlorine in water.
What would you observe in the following case?
Sulphur trioxide is dissolved in water on a large scale.
How will you distinguish between conc. HCl and conc. H2SO4?
A, B, C and D summarise the properties of sulphuric acid depending on whether it is dilute or concentrated.
A = Typical acid property
B = Non-Volatile acid
C = Oxidising agent
D = Dehydrating agent
Choose the property (A, B, C or D) depending on which is relevant to each of the following :
(i) Preparation of hydrogen chloride gas
(ii) Preparation of copper sulphate from copper oxide
(iii) Action of cone, sulphuric acid on sulphur
Making use only of substances chosen from those given below:
Dilute sulphuric acid
Sodium carbonate
Zinc
Sodium sulphite
Lead
Salcium carbonate
Give the equation for the reaction by which you could obtain:
- Hydrogen
- Sulphur dioxide
- Carbon dioxide
- Zinc Carbonate (two steps required).
Sulphuric acid is manufactured by the contact process.
Name the catalyst used.
Sulphuric acid is manufactured by the contact process.
Why H2SO4 is not obtained by directly reacting SO3 with water?
Which property of sulphuric acid accounts for its use as a dehydrating agent?
What property of Sulphuric acid is exhibited in the following case?
In the preparation of HCI gas when it reacts with Sodium chloride.
