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प्रश्न
Give balanced chemical equations for the action of sulphuric acid on the following:
Sulphur
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उत्तर
An action of sulphuric acid on sulphur
S + 2H2SO4 → 3SO2 + 2H2O
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संबंधित प्रश्न
Which property of sulphuric acid is shown by the reaction of the concentrated sulphuric acid with Ethanol?
Give two balanced reactions of the type to show the following property of sulphuric acid:
Non-volatile nature
Name the products formed when hot and concentrated sulphuric acid reacts with Carbon.
Give reason for the following:
When concentrated sulphuric acid is exposed to air, its volume increases and it becomes slightly dilute.
Give examples of the use of sulphuric acid as
Non-volatile acid
Copy and complete the following table.
Column 3 has the names of gases to be prepared using the substance you enter in column 1, along with dilute or concentrated sulphuric acid, as indicated in column 2.
| Column 1 | Column 2 | Column 3 |
| Substance reacted with acid | Dilute or concentrated sulphuric acid | Gas |
| Hydrogen | ||
| Carbon dioxide | ||
| Only chlorine |
Write the equation for the laboratory preparation of :
(i) Sodium sulphate using dilute sulphuric acid.
(ii) Lead sulphate using dilute sulphuric acid.
Write the equation of the following reaction :
Concentrated sulphuric acid is poured over sugar
State your observation of the following case:
When dilute hydrochloric acid is added to sodium carbonate crystals.
The gas evolved when dilute sulphuric acid reacts with iron sulphide.
A, B and C are the chemical properties of sulphuric acid:
A. Oxidizing agent
B. Dehydrating agent
C. Non-volatile acid
Match the following equations 1 to 3 to the above chemical properties of sulphuric acid.
1. \[\ce{KNO3 + H2SO4 -> KHSO4 + HNO3}\]
2. \[\ce{C12H22O11 -> 12C + 11H2O}\]
3. \[\ce{S + 2H2SO4 -> 2H2O + 3SO2}\]
