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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.
उत्तर
- Oxidising agent: Concentrated sulphuric acid as an oxidising agent and oxidises carbon to carbon dioxide.
\[\ce{\underset{Carbon}{C} + 2H2HO4 -> \underset{carbo dioxide}{CO2} + 2SO2 + 2H2O}\] - 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 there salt by double decomposition
\[\ce{H2SO4 + NaCl -> NaHSO4 + HCl}\]
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संबंधित प्रश्न
Give reasons for the following:
Sulphuric acid forms two types of salts with \[\ce{NaOH}\].
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)
Name the following:
Solution obtained by dissolving sulphur trioxide in 98% sulphuric acid.
Give reason for the following:
In the contact process, sulphur dioxide is dissolved in 98% sulphuric acid and not in water.
Name two other acids other than sulphuric acid, which can be prepared by using sulphuric acid.
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:
(i) Hydrogen
(ii) Sulphur dioxide
(iii) Carbon dioxide
(iv) Zinc Carbonate (two steps required).
Name the following:
A sulphate insoluble in water.
Write a balanced chemical equation when hot and concentrated sulphuric acid reacts with the following:
Sugar
Which property of sulphuric acid accounts for its use as a dehydrating agent?
State the observation for the following, when:
Concentrated sulphuric acid is added to carbon.
